Mt. Rainier
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Mount Rainier (), indigenously known as Tahoma, Tacoma, Tacobet, or təqʷubəʔ, is a large active
stratovolcano A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and per ...
in the
Cascade Range The Cascade Range or Cascades is a major mountain range of western North America, extending from southern British Columbia through Washington and Oregon to Northern California. It includes both non-volcanic mountains, such as the North Cascades, ...
of the Pacific Northwest, located in Mount Rainier National Park about south-southeast of Seattle. With a summit elevation of , it is the highest mountain in the U.S. state of Washington and the Cascade Range, the most
topographically prominent In topography, prominence (also referred to as autonomous height, relative height, and shoulder drop in US English, and drop or relative height in British English) measures the height of a mountain or hill's summit relative to the lowest contou ...
mountain in the
contiguous United States The contiguous United States (officially the conterminous United States) consists of the 48 adjoining U.S. states and the Federal District of the United States of America. The term excludes the only two non-contiguous states, Alaska and Hawaii ...
, and the tallest in the Cascade Volcanic Arc. Due to its high probability of eruption in the near future, Mount Rainier is considered one of the most dangerous volcanoes in the world, and it is on the Decade Volcano list. The large amount of glacial ice means that Mount Rainier could produce massive
lahar A lahar (, from jv, ꦮ꧀ꦭꦲꦂ) is a violent type of mudflow or debris flow composed of a slurry of pyroclastic material, rocky debris and water. The material flows down from a volcano, typically along a river valley. Lahars are extreme ...
s that could threaten the entire Puyallup River valley. According to the United States Geological Survey, "about 80,000 people and their homes are at risk in Mount Rainier's lahar-hazard zones." Between 1950 and 2018, 439,460 people climbed Mount Rainier. Approximately 84 people died in mountaineering accidents on Mount Rainier from 1947 to 2018.


Name

Mount Rainier was first known by the local Salishan speakers as ''Talol'', ''Tacoma'', or ''Tahoma''. One hypothesis of the word origin is 'mother of waters' in the Lushootseed language spoken by the
Puyallup Puyallup may refer to: * Puyallup (tribe), a Native American tribe * Puyallup, Washington, a city ** Puyallup High School ** Puyallup School District ** Puyallup station, a Sounder commuter rail station ** Washington State Fair, formerly the Puya ...
people. The linguist William Bright gives the origin as 'snow-covered mountain'. Another hypothesis is that Tacoma means "larger than Mount Baker" in Lushootseed: ''Ta'' 'larger', plus ''Koma'' (''Kulshan''), (Mount Baker). Other names originally used include Tahoma, Tacobeh, and Pooskaus. The current name was given by
George Vancouver Captain George Vancouver (22 June 1757 – 10 May 1798) was a British Royal Navy officer best known for his 1791–1795 expedition, which explored and charted North America's northwestern Pacific Coast regions, including the coasts of what a ...
, who named it in honor of his friend, Rear Admiral Peter Rainier. The map of the Lewis and Clark expedition of 1804–1806 refers to it as "Mt. Regniere". Although Rainier had been considered the official name of the mountain, Theodore Winthrop, in his posthumously published 1862 travel book ''The Canoe and the Saddle'', referred to the mountain as Tacoma and for a time, both names were used interchangeably, although Mt. Tacoma was preferred in the nearby city of Tacoma. In 1890, the
United States Board on Geographic Names The United States Board on Geographic Names (BGN) is a federal body operating under the United States Secretary of the Interior. The purpose of the board is to establish and maintain uniform usage of geographic names throughout the federal governm ...
declared that the mountain would be known as Rainier. Following this in 1897, the Pacific Forest Reserve became the Mount Rainier Forest Reserve, and the national park was established three years later. Despite this, there was still a movement to change the mountain's name to Tacoma and Congress was still considering a resolution to change the name as late as 1924. After the 2015 restoration of the original name Denali from Mount McKinley in Alaska, debate over Mount Rainier's name intensified.


Geographical setting

Mount Rainier is the tallest mountain in Washington and the Cascade Range. This peak is located just east of Eatonville and just southeast of Tacoma and Seattle. Mount Rainier is ranked third of the 128 ultra-prominent mountain peaks of the United States. Mount Rainier has a topographic prominence of , which is greater than that of K2, the world's second-tallest mountain, at . On clear days it dominates the southeastern horizon in most of the Seattle-Tacoma metropolitan area to such an extent that locals sometimes refer to it simply as "the Mountain". On days of exceptional clarity, it can also be seen from as far away as
Corvallis, Oregon Corvallis ( ) is a city and the county seat of Benton County in central western Oregon, United States. It is the principal city of the Corvallis, Oregon Metropolitan Statistical Area, which encompasses all of Benton County. As of the 2020 United ...
(at
Marys Peak Marys Peak (formerly Mary's Peak and sometimes still spelled this way) is a mountain in Benton County, Oregon, United States, just southwest of Philomath. According to the Benton County Historical Society, the native Kalapuya called the peak tc ...
), and Victoria, British Columbia. With 26 major glaciers and of permanent
snowfield A snow field, snowfield or neve is an accumulation of permanent snow and ice, typically found above the snow line, normally in mountainous and glacial terrain. Glaciers originate in snowfields. The lower end of a glacier is usually free from sn ...
s and glaciers, Mount Rainier is the most heavily glaciated peak in the lower 48 states. The summit is topped by two volcanic craters, each more than in diameter, with the larger east crater overlapping the west crater. Geothermal heat from the volcano keeps areas of both crater rims free of snow and ice, and has formed the world's largest volcanic
glacier cave A glacier cave is a cave formed within the ice of a glacier. Glacier caves are often called ice caves, but the latter term is properly used to describe bedrock caves that contain year-round ice. Overview Most glacier caves are started by wate ...
network within the ice-filled craters, with nearly of passages. A small crater lake about in size and deep, the highest in North America with a surface elevation of , occupies the lowest portion of the west crater below more than of ice and is accessible only via the caves. The Carbon,
Puyallup Puyallup may refer to: * Puyallup (tribe), a Native American tribe * Puyallup, Washington, a city ** Puyallup High School ** Puyallup School District ** Puyallup station, a Sounder commuter rail station ** Washington State Fair, formerly the Puya ...
, Mowich, Nisqually, and Cowlitz Rivers begin at eponymous glaciers of Mount Rainier. The sources of the White River are Winthrop, Emmons, and
Fryingpan Glacier Fryingpan Glacier is on the eastern face of the Little Tahoma Peak, just to the east of Mount Rainier in the U.S. state of Washington. The glacier is located on top of a cliff from the Emmons Glacier to the north and a small ridge separates this ...
s. The White, Carbon, and Mowich join the Puyallup River, which discharges into Commencement Bay at Tacoma; the Nisqually empties into Puget Sound east of
Lacey Lacey may refer to: People Surname A–L * Andrew Lacey (1887–1946), Australian politician * Bill Lacey (American football) (born 1971), American football player and coach * Bill Lacey (footballer) (1889–1969), Irish footballer * Bob Lacey ( ...
; and the Cowlitz joins the
Columbia River The Columbia River (Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, C ...
between Kelso and Longview.


Subsidiary peaks

The broad top of Mount Rainier contains three named summits. The highest is called the Columbia Crest. The second highest summit is Point Success, , at the southern edge of the summit plateau, atop the ridge known as Success Cleaver. It has a topographic prominence of about , so it is not considered a separate peak. The lowest of the three summits is Liberty Cap, , at the northwestern edge, which overlooks Liberty Ridge, the Sunset Amphitheater, and the dramatic Willis Wall. Liberty Cap has a prominence of , and so would qualify as a separate peak under most strictly prominence-based rules. A prominence cutoff of is commonly used in Washington state. High on the eastern flank of Mount Rainier is a peak known as
Little Tahoma Peak Little Tahoma Peak, also called Little Tahoma, is a satellite peak of Mount Rainier in Pierce County, Washington and in Mount Rainier National Park. It is quite noticeable from Seattle over away. Little Tahoma Peak is a volcanic remnant. It ...
, , an eroded remnant of the earlier, much higher, Mount Rainier. It has a prominence of , and it is almost never climbed in direct conjunction with Columbia Crest, so it is usually considered a separate peak. If considered separately from Mount Rainier, Little Tahoma Peak would be the third highest mountain peak in Washington.


Geology

Mount Rainier is a stratovolcano in the Cascade Volcanic Arc that consists of
lava flow Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or und ...
s, debris flows, and
pyroclastic Pyroclastic rocks (derived from the el, πῦρ, links=no, meaning fire; and , meaning broken) are clastic rocks composed of rock fragments produced and ejected by explosive volcanic eruptions. The individual rock fragments are known as pyroc ...
ejecta and flows. Its early volcanic deposits are estimated at more than 840,000 years old and are part of the
Lily Formation ''Lilium'' () is a genus of herbaceous flowering plants growing from bulbs, all with large prominent flowers. They are the true lilies. Lilies are a group of flowering plants which are important in culture and literature in much of the world. M ...
(about 2.9 million to 840,000 years ago). The early deposits formed a "proto-Rainier" or an ancestral cone prior to the present-day cone. The present cone is more than 500,000 years old. The volcano is highly eroded, with glaciers on its slopes, and appears to be made mostly of andesite. Rainier likely once stood even higher than today at about before a major debris avalanche and the resulting Osceola Mudflow approximately 5,000 years ago. In the past, Rainier has had large debris avalanches, and has also produced enormous lahars ( volcanic mudflows), due to the large amount of glacial ice present. Its lahars have reached all the way to Puget Sound, a distance of more than . Around 5,000 years ago, a large chunk of the volcano slid away and that debris avalanche helped to produce the massive Osceola Mudflow, which went all the way to the site of present-day Tacoma and south Seattle. This massive avalanche of rock and ice removed the top of Rainier, bringing its height down to around . About 530 to 550 years ago, the occurred, although this was not as large-scale as the Osceola Mudflow. After the major collapse approximately 5,000 years ago, subsequent eruptions of lava and tephra built up the modern summit cone until about as recently as 1,000 years ago. As many as 11 Holocene tephra layers have been found. Soils on Mount Rainier are mostly gravelly ashy sandy loams developed from colluvium or glacial till mixed with volcanic tephra. Under forest cover their profiles usually have the banded appearance of a classic podzol but the E horizon is darker than usual. Under meadows a thick dark A horizon usually forms the topsoil.


Modern activity and threat

The most recent recorded volcanic eruption was between 1820 and 1854, but many eyewitnesses reported eruptive activity in 1858, 1870, 1879, 1882, and 1894 as well. Seismic monitors have been placed in Mount Rainier National Park and on the mountain itself to monitor activity. An eruption could be deadly for all living in areas within the immediate vicinity of the volcano and an eruption would also cause trouble from
Vancouver, British Columbia, Canada Vancouver ( ) is a major city in western Canada, located in the Lower Mainland region of British Columbia. As the most populous city in the province, the 2021 Canadian census recorded 662,248 people in the city, up from 631,486 in 2016. The ...
to San Francisco, California because of the massive amounts of ash blasting out of the volcano into the atmosphere. Mount Rainier is located in an area that itself is part of the eastern rim of the Pacific Ring of Fire. This includes mountains and calderas like Mount Shasta and Lassen Peak in California, Crater Lake, Three Sisters, and
Mount Hood Mount Hood is a potentially active stratovolcano in the Cascade Volcanic Arc. It was formed by a subduction zone on the Pacific coast and rests in the Pacific Northwest region of the United States. It is located about east-southeast of Portlan ...
in Oregon, Mount St. Helens, Mount Adams, Glacier Peak, and Mount Baker in Washington, and
Mount Cayley Mount Cayley is an eroded but potentially active stratovolcano in the Pacific Ranges of southwestern British Columbia, Canada. Located north of Squamish, British Columbia, Squamish and west of Whistler, British Columbia, Whistler, the volcano ...
,
Mount Garibaldi Mount Garibaldi (known as Nch'kaý to the indigenous Squamish people) is a dormant stratovolcano in the Garibaldi Ranges of the Pacific Ranges in southwestern British Columbia, Canada. It has a maximum elevation of and rises above the surroundi ...
, Silverthrone Caldera, and Mount Meager in British Columbia. All of the above are dormant, but could return to activity, and scientists on both sides of the border gather research of the past eruptions of each in order to predict how mountains in this arc will behave and what they are capable of in the future, including Mount Rainier. Of these, only two have erupted since the beginning of the twentieth century: Lassen in 1915 and St. Helens in 1980 and 2004. However, past eruptions in this volcanic arc have multiple examples of sub-plinian eruptions or higher: Crater Lake's last eruption as Mount Mazama was large enough to cause its cone to collapse, and Mount Rainier's closest neighbor, Mount St. Helens, produced the largest eruption in the continental United States when it erupted in 1980. Statistics place the likelihood of a major eruption in the Cascade Range at 2–3 per century. Mount Rainier is listed as a Decade Volcano, or one of the 16 volcanoes with the greatest likelihood of causing loss of life and property if eruptive activity resumes. If Mount Rainier were to erupt as powerfully as Mount St. Helens did in its May 18, 1980 eruption, the effect would be cumulatively greater, because of the far more massive amounts of glacial ice locked on the volcano compared to Mount St. Helens, the vastly more heavily populated areas surrounding Rainier, and the fact that Mount Rainier is almost twice the size of St. Helens. Lahars from Rainier pose the most risk to life and property, as many communities lie atop older lahar deposits. According to the United States Geological Survey (USGS), about 150,000 people live on top of old lahar deposits of Rainier. Not only is there much ice atop the volcano, the volcano is also slowly being weakened by hydrothermal activity. According to Geoff Clayton, a geologist with a Washington State Geology firm, RH2 Engineering, a repeat of the 5000-year-old Osceola Mudflow would destroy
Enumclaw Enumclaw ( ) is a city in King County, Washington, United States. The population was 12,543 at the 2020 census. The Enumclaw Plateau, on which the city resides, was formed by a volcanic mudflow (lahar) from Mount Rainier approximately 5,700 ye ...
,
Orting Orting is a city in Pierce County, Washington, United States. The population was 9,041 at the 2020 census. History The first recorded claims for land in Orting were made in 1854 by William Henry Whitesell, Thomas Headley, Daniel Lane, and D ...
, Kent,
Auburn Auburn may refer to: Places Australia * Auburn, New South Wales * City of Auburn, the local government area *Electoral district of Auburn *Auburn, Queensland, a locality in the Western Downs Region *Auburn, South Australia *Auburn, Tasmania *Aub ...
,
Puyallup Puyallup may refer to: * Puyallup (tribe), a Native American tribe * Puyallup, Washington, a city ** Puyallup High School ** Puyallup School District ** Puyallup station, a Sounder commuter rail station ** Washington State Fair, formerly the Puya ...
,
Sumner Sumner may refer to: Places Antarctica * Mount Sumner, a mountain in the Rare Range, Antarctica * Sumner Glacier, southern Graham Land, Antarctica Australia * Sumner, Queensland, suburb of Brisbane New Zealand * Sumner, New Zealand, seaside sub ...
and all of Renton. Such a mudflow might also reach down the
Duwamish Duwamish may refer to: * Duwamish tribe, a Native American tribe in Washington state * Duwamish River, in Washington state * Duwamish (fireboat), ''Duwamish'' (fireboat) See also * Elliott Bay, often called "Duwamish Bay" in the 19th century * Du ...
estuary and destroy parts of
downtown Seattle Downtown is the central business district of Seattle, Washington. It is fairly compact compared with other city centers on the U.S. West Coast due to its geographical situation, being hemmed in on the north and east by hills, on the west by ...
, and cause tsunami in Puget Sound and
Lake Washington Lake Washington is a large freshwater lake adjacent to the city of Seattle. It is the largest lake in King County and the second largest natural lake in the state of Washington, after Lake Chelan. It borders the cities of Seattle on the west, ...
. Rainier is also capable of producing pyroclastic flows and expelling lava. According to K. Scott, a scientist with the USGS:
A home built in any of the probabilistically defined inundation areas on the new maps is more likely to be damaged or destroyed by a lahar than by fire... For example, a home built in an area that would be inundated every 100 years, on the average, is 27 times more likely to be damaged or destroyed by a flow than by fire. People know the danger of fire, so they buy fire insurance and they have smoke alarms, but most people are not aware of the risks of lahars, and few have applicable flood insurance.
The volcanic risk is somewhat mitigated by lahar warning sirens and escape route signs in Pierce County. The more populous
King County King County is located in the U.S. state of Washington. The population was 2,269,675 in the 2020 census, making it the most populous county in Washington, and the 13th-most populous in the United States. The county seat is Seattle, also the st ...
is also in the lahar area, but has no zoning restrictions due to volcanic hazard. More recently (since 2001) funding from the federal government for lahar protection in the area has dried up, leading local authorities in at-risk cities like Orting to fear a disaster similar to the Armero tragedy.


Seismic background

Typically, up to five earthquakes are recorded monthly near the summit. Swarms of five to ten shallow earthquakes over two or three days take place from time to time, predominantly in the region of below the summit. These earthquakes are thought to be caused by the circulation of hot fluids beneath Mount Rainier. Presumably, hot springs and steam vents within Mount Rainier National Park are generated by such fluids. Seismic swarms (not initiated with a mainshock) are common features at volcanoes, and are rarely associated with eruptive activity. Rainier has had several such swarms; there were days-long swarms in 2002, 2004, and 2007, two of which (2002 and 2004) included M 3.2 earthquakes. A 2009 swarm produced the largest number of events of any swarm at Rainier since seismic monitoring began over two decades earlier. Further swarms were observed in 2011 and 2021.


Glaciers

Glaciers are among the most conspicuous and dynamic geologic features on Mount Rainier. They erode the volcanic cone and are important sources of streamflow for several rivers, including some that provide water for hydroelectric power and irrigation. Together with perennial snow patches, the 29 named glacial features cover about of the mountain's surface in 2015 and have an estimated volume of about . Glaciers flow under the influence of gravity by the combined action of sliding over the rock on which they lie and by deformation, the gradual displacement between and within individual ice crystals. Maximum speeds occur near the surface and along the centerline of the glacier. During May 1970, Nisqually Glacier was measured moving as fast as per day. Flow rates are generally greater in summer than in winter, probably due to the presence of large quantities of meltwater at the glacier base. The size of glaciers on Mount Rainier has fluctuated significantly in the past. For example, during the last ice age, from about 25,000 to about 15,000 years ago, glaciers covered most of the area now within the boundaries of Mount Rainier National Park and extended to the perimeter of the present Puget Sound Basin. Between the 14th century and 1850, many of the glaciers on Mount Rainier advanced to their farthest extent downvalley since the last ice age. Many advances of this sort occurred worldwide during this time period known to geologists as the
Little Ice Age The Little Ice Age (LIA) was a period of regional cooling, particularly pronounced in the North Atlantic region. It was not a true ice age of global extent. The term was introduced into scientific literature by François E. Matthes in 1939. Ma ...
. During the Little Ice Age, the Nisqually Glacier advanced to a position downvalley from the site of the
Glacier Bridge A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as ...
, Tahoma and
South Tahoma Glacier The South Tahoma Glacier is a glacier located on the southwest flank of Mount Rainier in State of Washington. It covers and contains 4.6 billion ft3 (130 million m3) of ice. Starting from an elevation of around at the base of a steep cliff, the ...
s merged at the base of Glacier Island, and the terminus of
Emmons Glacier Emmons Glacier is on the northeast flank of Mount Rainier, in Washington. At , it has the largest surface area of any glacier in the contiguous United States. The glacier was named after the geologist Samuel Franklin Emmons after his involvement i ...
reached within of the White River Campground. Retreat of the Little Ice Age glaciers was slow until about 1920 when retreat became more rapid. Between the height of the Little Ice Age and 1950, Mount Rainier's glaciers lost about one-quarter of their length. Beginning in 1950 and continuing through the early 1980s, however, many of the major glaciers advanced in response to relatively cooler temperatures of the mid-century. The glaciers and snowfields of Mount Rainier also lost volume during this time, except for the Frying Pan and Emmons glaciers on the east flank and the small near-peak snowfields; the greatest volume loss was concentrated from ~1750 m (north) to ~2250 m (south) elevation. The largest single volume loss is from the Carbon Glacier, although it is to the north, due to its huge area at <2000 m elevation. The Carbon,
Cowlitz Cowlitz may refer to: People * Cowlitz people, an indigenous people of the Pacific Northwest ** Cowlitz language, member of the Tsamosan branch of the Coast Salish family of Salishan languages * Cowlitz Indian Tribe, a federally recognized tribe of ...
, Emmons, and Nisqually Glaciers advanced during the late 1970s and early 1980s as a result of high snowfalls during the 1960s and 1970s. Since the early-1980s, however, many glaciers have been thinning and retreating and some advances have slowed. The glaciers on Mount Rainier can generate mudflows, through glacial outburst floods not associated with any eruption. The South Tahoma Glacier generated 30 floods in the 1980s and early 1990s, and again in August, 2015.


Human history

At the time of European contact, the river valleys and other areas near the mountain were inhabited by Native Americans who hunted and gathered animals and plants in Mount Rainier's forests and high elevation meadows. Modern descendants of these peoples are represented by members of modern tribes that surround the mountain; including the
Nisqually Indian Tribe The Nisqually Indian Tribe of the Nisqually Reservation is a federally recognized tribe of Nisqually people. They are a Coast Salish people of indigenous peoples of the Pacific Northwest. Their tribe is located in Washington (state), Washington. ...
, the
Cowlitz Indian Tribe The Cowlitz Indian Tribe is a federally recognized tribe of Cowlitz people. They are a tribe of Southwestern Coast Salish and Sahaptan indigenous people of the Pacific Northwest located in Washington. Other Cowlitz people are enrolled in the C ...
, the Confederated Tribes and Bands of the Yakama Nation, the
Puyallup Tribe of Indians The Puyallup, Spuyalpabš or S’Puyalupubsh (pronounced: Spoy-all-up-obsh) ('generous and welcoming behavior to all people, who enter our lands') are a federally recognized Coast Salish Native American tribe from western Washington state, Uni ...
, and the
Muckleshoot Indian Tribe The Muckleshoot ( lut, bəqəlšuł ) are a Lushootseed-speaking Native American tribe, part of the Coast Salish peoples of the Pacific Northwest. They are descendants of the Duwamish and Puyallup peoples whose traditional territory was located ...
, among others in the area. The archaeological record of human use of the mountain dates to over 8,500 years before present (BP). Sites related to seasonal use of Mount Rainier and its landscapes are reflected in chipped stone tool remains and settings suggesting functionally varied uses including task-specific sites, rockshelters, travel stops, and long-term base camps. Their distribution on the mountain suggest primary use of subalpine meadows and low alpine habitats that provided relatively high resource abundance during the short summer season.
Captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...
George Vancouver Captain George Vancouver (22 June 1757 – 10 May 1798) was a British Royal Navy officer best known for his 1791–1795 expedition, which explored and charted North America's northwestern Pacific Coast regions, including the coasts of what a ...
reached Puget Sound in early May 1792 and became the first European to see the mountain. In 1833, Dr.
William Fraser Tolmie William Fraser Tolmie ( "Dr. Tolmie") (February 3, 1812 – December 8, 1886) was a surgeon, fur trader, scientist, and politician. He was born in Inverness, Scotland, in 1812, and by 1833 moved to the Pacific Northwest in the service of ...
explored the area looking for medicinal plants.
Hazard Stevens Hazard Stevens (June 9, 1842 – October 11, 1918) was an American military officer, mountaineer, politician and writer. He received the Medal of Honor for his service in the Union army during the American Civil War at the Battle of Fort Huger ...
and
P. B. Van Trump Philemon Beecher Van Trump (known as P. B. Van Trump; December 18, 1838 – December 27, 1916) was an American pioneering mountaineer and writer who lived in the state of Washington. He is best known for the first documented ascent of Mount ...
received a hero's welcome in the streets of
Olympia The name Olympia may refer to: Arts and entertainment Film * ''Olympia'' (1938 film), by Leni Riefenstahl, documenting the Berlin-hosted Olympic Games * ''Olympia'' (1998 film), about a Mexican soap opera star who pursues a career as an athlet ...
after their successful summit climb in 1870. The first female ascent was made in 1890 by Fay Fuller, accompanied by Van Trump and three other teammates. Descending from the summit in 1883, James Longmire discovered a mineral spring; this ultimately led to his establishment of a spa and hotel, drawing other visitors to the area to seek the benefits of the spring. Later, the headquarters of the national park would be established at Longmire, until flooding caused them to be relocated to Ashford. The area also became the site of features like a museum, a post office, and a gas station, with additions like a library and a gift shop soon following; many of these buildings were ultimately nominated to the national historic register of historic places. Longmire remains the second most popular place in the park. In 1924, a publication from the park described the area:
"A feature at Longmire Springs of great interest to everyone is the group of mineral springs in the little flat to the west of National Park Inn. There are some forty distinct springs, a half dozen of which are easily reached from the road. An analysis of the waters show that they all contain about the smae icmineral salts but in slightly differing proportions. All the water is highly carbonated and would be classed as extremely "hard". Certain springs contain larger amounts of soda, iron and sulphur, giving them a distinct taste and color."
John Muir climbed Mount Rainier in 1888, and although he enjoyed the view, he conceded that it was best appreciated from below. Muir was one of many who advocated protecting the mountain. In 1893, the area was set aside as part of the
Pacific Forest Reserve The Pacific Forest Reserve was established by the General Land Office in Washington on February 20, 1893 with . On February 22, 1898 the forest was combined with other lands to create the Mount Rainier Forest Reserve, and the name was discontinued. ...
in order to protect its physical and economic resources, primarily timber and watersheds. Citing the need to also protect scenery and provide for public enjoyment, railroads and local businesses urged the creation of a national park in hopes of increased tourism. On March 2, 1899, President William McKinley established Mount Rainier National Park as America's fifth
national park A national park is a nature park, natural park in use for conservation (ethic), conservation purposes, created and protected by national governments. Often it is a reserve of natural, semi-natural, or developed land that a sovereign state dec ...
. Congress dedicated the new park "for the benefit and enjoyment of the people" and "... for the preservation from injury or spoliation of all timber, mineral deposits, natural curiosities, or wonders within said park, and their retention in their natural condition." On 24 June 1947, Kenneth Arnold reported seeing a formation of nine unidentified flying objects over Mount Rainier. His description led to the term " flying saucers". In 1998, the United States Geological Survey began putting together the Mount Rainier Volcano Lahar Warning System to assist in the
emergency evacuation Emergency evacuation is the urgent immediate egress or escape of people away from an area that contains an imminent threat, an ongoing threat or a hazard to lives or property. Examples range from the small-scale evacuation of a building due t ...
of the Puyallup River valley in the event of a catastrophic debris flow. It is now run by the Pierce County Department of Emergency Management. Tacoma, at the mouth of the Puyallup, is only west of Rainier, and moderately sized towns such as Puyallup and Orting are only away, respectively. Mount Rainier appears on four distinct United States postage stamp issues. In 1934, it was the 3-cent issue in a series of National Park stamps, and was also shown on a souvenir sheet issued for a philatelic convention. The following year, in 1935, both of these were reprinted by Postmaster General
James A. Farley James Aloysius Farley (May 30, 1888 – June 9, 1976) was an American politician and Knight of Malta who simultaneously served as chairman of the New York State Democratic Committee, chairman of the Democratic National Committee, and Postmas ...
as special issues given to officials and friends. Because of complaints by the public, "Farley's Follies" were reproduced in large numbers. The second stamp issue is easy to tell from the original because it is imperforate. Both stamps and souvenir sheets are widely available. The Washington state quarter, which was released on April 11, 2007, features Mount Rainier and a salmon.


Climbing

Mountain climbing Mountaineering or alpinism, is a set of outdoor activities that involves ascending tall mountains. Mountaineering-related activities include traditional outdoor climbing, skiing, and traversing via ferratas. Indoor climbing, sport climbing, a ...
on Mount Rainier is difficult, involving traversing the largest glaciers in the U.S. south of Alaska. Most climbers require two to three days to reach the summit, with a success rate of approximately 50%, with weather and physical conditioning of the climbers being the most common reasons for failure. About 8,000 to 13,000 people attempt the climb each year, about 90% via routes from
Camp Muir Camp Muir, named for the naturalist John Muir, is a high-altitude refuge for climbers in Mount Rainier National Park in Washington (state), Washington, accessed through the Paradise Entrance. The shelters comprising the camp are situated at a el ...
on the southeast flank, and most of the rest ascend
Emmons Glacier Emmons Glacier is on the northeast flank of Mount Rainier, in Washington. At , it has the largest surface area of any glacier in the contiguous United States. The glacier was named after the geologist Samuel Franklin Emmons after his involvement i ...
via Camp Schurman on the northeast. Climbing teams require experience in glacier travel, self-rescue, and wilderness travel. All climbers who plan to climb above the high camps, Camp Muir and Camp Schurman, are required to purchase a Mount Rainier Climbing Pass and register for their climb. Additionally, solo climbers must fill out a solo climbing request form and receive written permission from the Superintendent before attempting to climb.


Climbing routes

All climbing routes on Mount Rainier require climbers to possess some level of technical climbing skill. This includes ascending and descending the mountain with the use of technical climbing equipment such as crampons, ice axes, harnesses, and ropes. Difficulty and technical challenge of climbing Mount Rainier can vary widely between climbing routes. Routes are graded in NCCS Alpine Climbing format. The
normal route A normal route or normal way (french: voie normale; german: Normalweg) is the most frequently used route for ascending and descending a mountain peak. It is usually the simplest route. Overview In the Alps, routes are classed in the following way ...
to the summit of Mount Rainier is the Disappointment Cleaver Route, YDS grade II-III. As climbers on this route have access to the permanently established
Camp Muir Camp Muir, named for the naturalist John Muir, is a high-altitude refuge for climbers in Mount Rainier National Park in Washington (state), Washington, accessed through the Paradise Entrance. The shelters comprising the camp are situated at a el ...
, it sees the significant majority of climbing traffic on the mountain. This route is also the most common commercially guided route. The term "cleaver" is used in the context of a rock ridge that separates two glaciers. The reason for naming this cleaver a "disappointment" is unrecorded, but it is thought to be due to climbers reaching it only to recognize their inability to reach the summit. An alternative route to the Disappointment Cleaver is the Ingraham Glacier Direct Route, grade II, and is often used when the Disappointment Cleaver route cannot be climbed due to poor route conditions. The Emmons Glacier Route, grade II, is an alternative to the Disappointment Cleaver route and poses a lower technical challenge to climbers. The climbers on the route can make use of Camp Schurman (9,500 ft), a glacial camp site. Camp Schurman is equipped with a solar toilet and a ranger hut. The Liberty Ridge Route, grade IV, is a considerably more challenging and objectively dangerous route than the normal route to the summit. It runs up the center of the North Face of Mount Rainier and crosses the very active Carbon Glacier. First climbed by Ome Daiber, Arnie Campbell and Jim Burrow in 1935, it is listed as one of the
Fifty Classic Climbs of North America ''Fifty Classic Climbs of North America'' is a climbing guidebook and history written by Steve Roper and Allen Steck. It is considered a classic piece of climbing literature, known to many climbers as simply "The Book", and has served as an inspi ...
by
Steve Roper Steve Roper is a noted climber and historian of the Sierra Nevada in the United States. He along with Allen Steck are the founding editors of the Sierra Club journal ''Ascent''. Roper is the winner of the Sierra Club's Francis P. Farquhar Mou ...
and Allen Steck. This route only accounts for approximately 2% of climbers on the mountain, but approximately 25% of its deaths.


Dangers and accidents

About two mountaineering deaths each year occur because of rock and ice fall, avalanche, falls, and hypothermia. These incidents are often associated with exposure to very high altitude, fatigue, dehydration, and/or poor weather. 58 deaths on Mount Rainier have been reported from 1981 to 2010. Approximately 7 percent of mountaineering deaths and 6 percent of mountaineering accidents in the United States are attributed to Mount Rainier. The first known climbing death on Mount Rainier was Edgar McClure, a professor of chemistry at the University of Oregon, on July 27, 1897. During the descent in darkness, McClure stepped over the edge of the rock and slid to his death on a rocky outcrop. The spot is now known as McClure Rock. Willi Unsoeld, who reached the summit of Mount Everest in 1963, was killed, along with an Evergreen State College student, in an avalanche on Mount Rainier in 1979. He had climbed the mountain over 200 times. The worst mountaineering accident on Mount Rainier occurred in 1981, when ten clients and a guide died in an avalanche/ice fall on the Ingraham Glacier. This was the largest number of fatalities on Mount Rainier in a single incident since 32 people were killed in a 1946 plane crash on the South Tahoma Glacier. In one of the worst disasters on the mountain in over thirty years, six climbers—two guides, and four clients—were killed on May 31, 2014, after the climbers fell 3,300 feet (1,000 m) while attempting the summit via the Liberty Ridge climbing route. Low-flying search helicopters pinged the signals from the avalanche beacons worn by the climbers, and officials concluded that there was no possible chance of survival. Searchers found tents and clothes along with rock and ice strewn across a debris field on the Carbon Glacier at , possible evidence for a slide or avalanche in the vicinity where the team went missing, though the exact cause of the accident is unknown. The bodies of three of the client climbers were spotted on August 7, 2014, during a training flight and subsequently recovered on August 19, 2014. The bodies of the fourth client climber and two guides have not been located.


Outdoor recreation

In addition to climbing, hiking,
backcountry skiing Backcountry skiing ( US), also called off-piste (Europe), alpine touring, or out-of-area, is skiing in the backcountry on unmarked or unpatrolled areas either inside or outside a ski resort's boundaries. This contrasts with alpine skiing, which i ...
, photography, and camping are popular activities in the park. Hiking trails, including the Wonderland Trail—a circumnavigation of the peak, provide access to the backcountry. Popular for winter sports include snowshoeing and
cross-country skiing Cross-country skiing is a form of skiing where skiers rely on their own locomotion to move across snow-covered terrain, rather than using ski lifts or other forms of assistance. Cross-country skiing is widely practiced as a sport and recreation ...
.


Climate

The summit of Mount Rainier has an ice cap climate ( Köppen climate classification: EF)


Ecology

Mount Rainier's protected status as a national park protects its
primeval Primeval may refer to: * Primeval forest, an area of forest that has attained great age * Primeval number, a positive integer satisfying certain conditions * Primeval history, name given by biblical scholars to the first eleven chapters of the Bo ...
Cascade ecosystem, providing a stable habitat for many species in the region, including endemic flora and fauna that are unique to the area, such as the
Cascade red fox The Cascade red fox (''Vulpes vulpes cascadensis'') is a subspecies of red fox native to Washington in the United States. Diet They prey on small mammals and birds living only in the mountains. Due to this, they have an ecology distinct from ...
and Mount Rainier lousewort. The ecosystem on the mountain is very
diverse Diversity, diversify, or diverse may refer to: Business *Diversity (business), the inclusion of people of different identities (ethnicity, gender, age) in the workforce * Diversity marketing, marketing communication targeting diverse customers ...
, owing to the climate found at different elevations. Scientists track the distinct species found in the forest zone, the subalpine zone, and the
alpine Alpine may refer to any mountainous region. It may also refer to: Places Europe * Alps, a European mountain range ** Alpine states, which overlap with the European range Australia * Alpine, New South Wales, a Northern Village * Alpine National Pa ...
zone. They have discovered more than one thousand species of plants and fungi. The mountain is also home to 65 species of mammals, 5
reptile Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians ( ...
, 182 bird, 14
amphibians Amphibians are four-limbed and ectothermic vertebrates of the class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terrestrial, fossorial, arbore ...
, and 14 of native fish, in addition to an innumerable amount of invertebrates.


Flora

Mount Rainier has regularly been described as one of the best places in the world to view wildflowers. In the subalpine region of the mountain, the snow often stays on the ground until summer begins, limiting plants to a much shorter
growing season A season is a division of the year marked by changes in weather, ecology, and the amount of daylight. The growing season is that portion of the year in which local conditions (i.e. rainfall, temperature, daylight) permit normal plant growth. Whil ...
. This produces dramatic blooms in areas like Paradise. In 1924, the flowers were described by naturalist
Floyd W. Schmoe Floyd Wilfred Schmoe (September 21, 1895 – April 20, 2001) was a Quaker, pacifist, author, college professor, marine biologist, and park ranger living in the Seattle, Washington area for most of his life. He earned Japan's highest civilian hono ...
:
"Mount Rainier National Park is perhaps better known the world over for these wonderful flowers than for any one feature. The mountains, the glaciers, the cascading streams and the forests may be equalled if one looks far away enough, but no park has been so favored in the way of wild flowers."
Forests on the mountain span from as young as 100 years old to sections of old growth forest that are calculated to be 1000 years or more in age. The lower elevation consists mainly of
western red-cedar ''Thuja plicata'' is an evergreen coniferous tree in the cypress family Cupressaceae, native to western North America. Its common name is western redcedar (western red cedar in the UK), and it is also called Pacific redcedar, giant arborvitae, ...
,
Douglas fir The Douglas fir (''Pseudotsuga menziesii'') is an evergreen conifer species in the pine family, Pinaceae. It is native to western North America and is also known as Douglas-fir, Douglas spruce, Oregon pine, and Columbian pine. There are three va ...
, and western hemlock.
Pacific silver fir ''Abies amabilis'', commonly known as the Pacific silver fir, is a fir native to the Pacific Northwest of North America, occurring in the Pacific Coast Ranges and the Cascade Range. It is also commonly referred to as the white fir, red fir, lov ...
, western white pine,
Alaska yellow cedar ''Callitropsis nootkatensis'', formerly known as ''Cupressus nootkatensis'' (syn. ''Xanthocyparis nootkatensis'') is a species of trees in the cypress family native to the coastal regions of northwestern North America. This species goes by many ...
, and noble fir are found further up the mountain. In the alpine level, Alaskan yellow cedar, subalpine fir, and mountain hemlock grow.


Fauna

The mountain supports a wide variety of animal life, including several species that are protected on the state or federal level, like the Northern Spotted Owl. Efforts are also being made to reintroduce native species that had locally been hunted to extinction, like the Pacific fisher. There are sixty-five types of mammals living on the mountain, including
cougars The cougar (''Puma concolor'') is a large cat native to the Americas. Its range spans from the Canadian Yukon to the southern Andes in South America and is the most widespread of any large wild terrestrial mammal in the Western Hemisphere. I ...
, mountain goats,
marmots Marmots are large ground squirrels in the genus ''Marmota'', with 15 species living in Asia, Europe, and North America. These herbivores are active during the summer, when they can often be found in groups, but are not seen during the winter, ...
, and
elk The elk (''Cervus canadensis''), also known as the wapiti, is one of the largest species within the deer family, Cervidae, and one of the largest terrestrial mammals in its native range of North America and Central and East Asia. The common ...
. Common reptiles and amphibians include garter snakes, frogs, and salamanders. There are many types of birds found throughout the different elevations on the mountain, but while some live there all year, many are migratory. Salmon and trout species use the rivers formed by the
glaciers A glacier (; ) is a persistent body of dense ice that is constantly moving under its own weight. A glacier forms where the accumulation of snow exceeds its ablation over many years, often centuries. It acquires distinguishing features, such as ...
, and though the lakes stopped being stocked in 1972, thirty lakes still have reproducing populations.


See also

* Mount Rainier National Park *
Mount Rainier Wilderness Mount is often used as part of the name of specific mountains, e.g. Mount Everest. Mount or Mounts may also refer to: Places * Mount, Cornwall, a village in Warleggan parish, England * Mount, Perranzabuloe, a hamlet in Perranzabuloe parish, C ...
* Mount Rainier Forest Reserve *
Bibliography of Mount Rainier National Park The List of Mount Rainier National Park references identifies English language historic, scientific, ecological, cultural, tourism, social, and advocacy books, journals and studies on the subject of Mount Rainier National Park topics published si ...


References


Notes


External links


Mount Rainier National Park
(also used as a reference) *
Mt. Rainier Eruption Task Force
(pdf)



* * * : contains images and videos of the summit caves


University of Washington libraries and digital collections


Lawrence Denny Lindsley Photographs
Landscape and nature photography of Lawrence Denny Lindsley, including photographs of scenes around Mount Rainier.
The Mountaineers Collection
Photographic albums and text documenting the Mountaineers official annual outings undertaken by club members from 1907–1951, includes 3 Mt. Rainier albums (ca. 1912, 1919, 1924).
Henry M. Sarvant Photographs
photographs by Henry Mason Sarvant depicting his climbing expeditions to Mt. Rainier and scenes of the vicinity from 1892–1912.
Alvin H. Waite Photographs
Photographs of Mt. Rainier by Alvin H. Waite, during the late 19th and early 20th centuries. {{DEFAULTSORT:Rainier, Mount Stratovolcanoes of the United States Volcanoes of Washington (state)
Mount Rainier Mount Rainier (), indigenously known as Tahoma, Tacoma, Tacobet, or təqʷubəʔ, is a large active stratovolcano in the Cascade Range of the Pacific Northwest, located in Mount Rainier National Park about south-southeast of Seattle. With a s ...
Decade Volcanoes Subduction volcanoes Cascade Volcanoes Active volcanoes VEI-4 volcanoes Highest points of United States national parks
Mount Rainier Mount Rainier (), indigenously known as Tahoma, Tacoma, Tacobet, or təqʷubəʔ, is a large active stratovolcano in the Cascade Range of the Pacific Northwest, located in Mount Rainier National Park about south-southeast of Seattle. With a s ...
Mountains of Pierce County, Washington Pleistocene stratovolcanoes Highest points of U.S. states
Mount Rainier Mount Rainier (), indigenously known as Tahoma, Tacoma, Tacobet, or təqʷubəʔ, is a large active stratovolcano in the Cascade Range of the Pacific Northwest, located in Mount Rainier National Park about south-southeast of Seattle. With a s ...