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Sandy Glacier
Sandy Glacier is an alpine glacier located on the west slope of Mount Hood in the U.S. state of Oregon. It extends in elevation from about . The glacier is the source of Muddy Fork, a tributary of the Sandy River. The upper extent of the glacier is known for extensive crevasses. The lower extent was marked by the Sandy Glacier Caves, possibly the largest glacier cave system in the lower 48 U.S. states. The glacier is a remnant of the massive glaciers that formed during the last ice age. It is bounded on the south by Yocum Ridge which also defines the northern side of Reid Glacier, and by a ridge on the north which defines part of the Hood River- Clackamas county border which also bounds the south side of Glisan Glacier. The glacier lies entirely within Mount Hood Wilderness. Sandy Glacier decreased in area by 40% between 1907 and 2004. The glacier terminus has retreated by over the same time period. See also *List of glaciers in the United States This is a list o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clackamas County, Oregon
Clackamas County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 421,401, making it Oregon's third-most populous county. Its county seat is Oregon City. The county was named after the Native Americans living in the area, the Clackamas people, who are part of the Chinookan peoples. Clackamas County is part of the Portland-Vancouver- Hillsboro, OR- WA Metropolitan Statistical Area. It is in the Willamette Valley. History Originally named Clackamas District, it was one of the four original Oregon districts created by Oregon's Provisional Legislature on July 5, 1843, along with Twality (later Washington), Champooick (later Marion), and Yamhill. The four districts were redesignated as counties in 1845. At the time of its creation, Clackamas County covered portions of four present-day U.S. states and a Canadian province. The Columbia River became the northern boundary of the county in 1844. Soon after, John McLoughlin stak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hood River County, Oregon
Hood River County is one of the 36 counties in the U.S. state of Oregon. As of the 2020 census, the population was 23,977. The county seat is Hood River. The county was established in 1908 and is named for the Hood River, a tributary of the Columbia River. Hood River County comprises the Hood River, OR Micropolitan Statistical Area. The Hood River Valley produces apples, pears, and cherries. Situated between Mount Hood and the Columbia River in the middle of the Columbia River Gorge, Hood River County is a popular destination for outdoor enthusiasts, such as windsurfers, mountain-bikers, skiers, hikers, kayakers, and many more. History The first permanent settlers in present-day Hood River County filed a donation land claim in 1854. The first school was built in 1863 and a road from The Dalles was completed in 1867. By 1880 there were 17 families living in the valley. By the latter part of the nineteenth century farmers of Japanese, Finnish, German, and French ethnicit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciers Of Clackamas County, Oregon
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 crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between latitudes 35°N and 35°S, glaciers occur only ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaciers Of Mount Hood
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 crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between latitudes 35°N and 35°S, glaciers occur only in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wrenn Peak
Wrenn Peak () is a peak rising to 1750 m on the ridge at the head of Sandy Glacier and Enyo Glacier in Olympus Range, McMurdo Dry Valleys. Named by Advisory Committee on Antarctic Names (US-ACAN) (2004) after John H. Wrenn, Department of Geology, Northern Illinois University, DeKalb DeKalb or De Kalb may refer to: People * Baron Johann de Kalb (1721–1780), major general in the American Revolutionary War Places Municipalities in the United States * DeKalb, Illinois, the largest city in the United States named DeKalb **DeKal ..., IL, a participant in the McMurdo Dry Valleys Drilling Project, 1973–74. Mountains of Victoria Land McMurdo Dry Valleys {{McMurdoDryValleys-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Glaciers In The United States
This is a list of glaciers existing in the United States, currently or in recent centuries. These glaciers are located in nine states, all in the Rocky Mountains or farther west. The southernmost named glacier among them is the Lilliput Glacier in Tulare County, east of the Central Valley of California. Glaciers of Alaska There are approximately 664 named glaciers in Alaska according to the Geographic Names Information System (GNIS). * Agassiz Glacier - Saint Elias Mountains * Aialik Glacier - Kenai Peninsula * Alsek Glacier - Glacier Bay * Aurora Glacier - Glacier Bay * Bacon Glacier *Barnard Glacier * Bear Glacier - Aialik Peninsula, Resurrection Bay *Bering Glacier * Black Rapids *Brady Glacier *Brooks Glacier - Alaska Range *Buckskin Glacier - Alaska Range * Burns Glacier (Alaska) - Kenai Mountains *Byron Glacier - Kenai Mountains * Caldwell Glacier - Alaska Range *Cantwell Glacier - Alaska Range *Carroll Glacier - Glacier Bay *Casement Glacier - Glacier Bay *Cast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glacier Terminus
A glacier terminus, toe, or snout, is the end of a glacier at any given point in time. Although glaciers seem motionless to the observer, in reality glaciers are in endless motion and the glacier terminus is always either advancing or retreating. The location of the terminus is often directly related to glacier mass balance, which is based on the amount of snowfall which occurs in the accumulation zone of a glacier, as compared to the amount that is melted in the ablation zone. The position of a glacier terminus is also impacted by localized or regional temperature change over time. Tracking Tracking the change in location of a glacier terminus is a method of monitoring a glacier's movement. The end of the glacier terminus is measured from a fixed position in neighboring bedrock periodically over time. The difference in location of a glacier terminus as measured from this fixed position at different time intervals provides a record of the glacier's change. A similar way of trac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Hood Wilderness
The Mount Hood Wilderness is a protected wilderness area inside the Mount Hood National Forest, in the U.S. state of Oregon. The area, covering , includes the peak of Mount Hood and its upper slopes, and ranges from temperate rain forests at the lower elevations, to glaciers and rocky ridges at higher elevations. The wilderness wraps around the mountain from west to northeast, and borders Timberline Lodge and Mount Hood Meadows ski lifts on some of the south and east slopes of the mountain. Trails Journeys to the summit are popular. There are opportunities for experienced and novice mountaineers to traverse glaciers, snowfields and steep volcanic soil, and to deal with rapidly changing and difficult to predict weather. More than 10,000 climbers annually make the attempt, making Mount Hood's summit the most visited snowclad peak in America. Numerous trails circle the mountain, from Lolo Pass on the northwest (which the Pacific Crest Trail crosses) to Cloud Cap on the northeast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glisan Glacier
Glisan Glacier is an alpine glacier located on the northwest slope of Mount Hood in the US state of Oregon. It lies at an average altitude of . See also *List of glaciers in the United States This is a list of glaciers existing in the United States, currently or in recent centuries. These glaciers are located in nine states, all in the Rocky Mountains or farther west. The southernmost named glacier among them is the Lilliput Glacier ... References Glaciers of Mount Hood Glaciers of Hood River County, Oregon Mount Hood National Forest Glaciers of Oregon {{HoodRiverCountyOR-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reid Glacier (Oregon)
Reid Glacier is an alpine glacier located on the west slope of Mount Hood in the U.S. state of Oregon. It ranges in elevation from about . The glacier is the source of the Sandy River. The upper extent of the glacier is known for extensive crevasses. The glacier is a remnant of the massive glaciers that formed during the last ice age. It is bounded on the north by Yokum Ridge which also defines the southern side of Sandy Glacier, and by a ridge on the south bounding the north side of Zigzag Glacier. The eastern and upper reaches of this ridge include Illumination Rock. The uppermost portion of the glacier is below Leuthold Couloir. The glacier lies entirely within Mount Hood Wilderness. Between 1907 and 2004, Reid Glacier lost 35% of its surface area. The glacier terminus has retreated by over the same time period. See also *List of glaciers in the United States This is a list of glaciers existing in the United States, currently or in recent centuries. These glacier ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpine Glacier
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 crevasses and seracs, as it slowly flows and deforms under stresses induced by its weight. As it moves, it abrades rock and debris from its substrate to create landforms such as cirques, moraines, or fjords. Although a glacier may flow into a body of water, it forms only on land and is distinct from the much thinner sea ice and lake ice that form on the surface of bodies of water. On Earth, 99% of glacial ice is contained within vast ice sheets (also known as "continental glaciers") in the polar regions, but glaciers may be found in mountain ranges on every continent other than the Australian mainland, including Oceania's high-latitude oceanic island countries such as New Zealand. Between latitudes 35°N and 35°S, glaciers occur only in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Age
An ice age is a long period of reduction in the temperature of Earth's surface and atmosphere, resulting in the presence or expansion of continental and polar ice sheets and alpine glaciers. Earth's climate alternates between ice ages and greenhouse periods, during which there are no glaciers on the planet. Earth is currently in the Quaternary glaciation. Individual pulses of cold climate within an ice age are termed '' glacial periods'' (or, alternatively, ''glacials, glaciations, glacial stages, stadials, stades'', or colloquially, ''ice ages''), and intermittent warm periods within an ice age are called '' interglacials'' or ''interstadials''. In glaciology, ''ice age'' implies the presence of extensive ice sheets in both northern and southern hemispheres. By this definition, Earth is currently in an interglacial period—the Holocene. The amount of anthropogenic greenhouse gases emitted into Earth's oceans and atmosphere is predicted to prevent the next glacial period for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
