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Tom Dick And Harry Mountain
Tom Dick and Harry Mountain is a volcano, volcanic mountain in Clackamas County, Oregon, Clackamas County in the U.S. state of Oregon. It is located southwest of Mount Hood, west-southwest of Government Camp, Oregon, Government Camp between the Zigzag River and Still Creek, south of Zigzag Mountain. Because of its proximity to Mount Hood, it is considered a foothill. The mountain is named for its three distinct peaks along the summit, forming the cirque that is now part of the Mount Hood Skibowl ski resort. The highest peak has an elevation of . The name was in use as early as 1897, according to Elijah "Lige" Coalman, the namesake of Coalman Glacier. The mountain has also been called "Tom Dick Mountain" in the past, although the United States Board on Geographic Names, Board on Geographic Names officially decided in favor of including "Harry" in 1969, making the mountain's name a play on the phrase "Tom, Dick and Harry". It has frequently been noted on lists of Place names ... [...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 staked a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coalman Glacier
The Coalman Glacier (also Coleman Glacier) is a glacier located on the upper slopes of Mount Hood in the U.S. state of Oregon. It is the mountain's highest glacier ranging from about , located within the crater rim, southwest of the peak. It was named for Elija Coalman (variously spelled ''Elijah Coleman''), an early mountain guide who climbed Mount Hood 586 times. Coalman Glacier is the second most frequently visited glacier on the mountain because it is part of the popular South Climbing route from Timberline Lodge. It lies entirely within Mount Hood Wilderness. The most well known feature of Coalman is the ''Hogsback'': a snow ridge running southwest to northeast from Crater Rock toward the summit ridge. The Bergschrund is another widely known feature where the glacier pulls away from the stagnant ice leaving a large crevasse. In 2007, it had become large enough to cause most climbers to use another route.Previous noticed posted at The glacier is a remnant of the massi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanoes Of Clackamas County, Oregon
A volcano is a rupture in the Crust (geology), crust of a Planet#Planetary-mass objects, planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and volcanic gas, gases to escape from a magma chamber below the surface. On Earth, volcanoes are most often found where list of tectonic plates, tectonic plates are divergent boundary, diverging or convergent boundary, converging, and most are found underwater. For example, a mid-ocean ridge, such as the Mid-Atlantic Ridge, has volcanoes caused by divergent tectonic plates whereas the Pacific Ring of Fire has volcanoes caused by convergent tectonic plates. Volcanoes can also form where there is stretching and thinning of the crust's plates, such as in the East African Rift and the Wells Gray-Clearwater volcanic field and Rio Grande rift in North America. Volcanism away from plate boundaries has been postulated to arise from upwelling diapirs from the core–mantle boundary, deep in the Earth. This results in hotspot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Oregon
This article comprises three sortable tables of major mountain peaksThis article defines a significant summit as a summit with at least of topographic prominence, and a major summit as a summit with at least of topographic prominence. All summits in this article have at least 500 meters of topographic prominence. An ultra-prominent summit is a summit with at least of topographic prominence. of the U.S. State of Oregon. The summit of a mountain or hill may be measured in three principal ways: #The topographic elevation of a summit measures the height of the summit above a geodetic sea level.All elevations in this article include an elevation adjustment from the National Geodetic Vertical Datum of 1929 (NGVD 29) to the North American Vertical Datum of 1988 (NAVD 88). For further information, please see this United States National Geodetic Surveybr>noteIf the elevation or prominence of a summit is calculated as a range of values, the arithmetic mean is shown. The fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mountains Of Clackamas County, Oregon
A mountain is an elevated portion of the Earth's crust, generally with steep sides that show significant exposed bedrock. Although definitions vary, a mountain may differ from a plateau in having a limited summit area, and is usually higher than a hill, typically rising at least 300 metres (1,000 feet) above the surrounding land. A few mountains are isolated summits, but most occur in mountain ranges. Mountains are formed through tectonic forces, erosion, or volcanism, which act on time scales of up to tens of millions of years. Once mountain building ceases, mountains are slowly leveled through the action of weathering, through slumping and other forms of mass wasting, as well as through erosion by rivers and glaciers. High elevations on mountains produce colder climates than at sea level at similar latitude. These colder climates strongly affect the ecosystems of mountains: different elevations have different plants and animals. Because of the less hospitable terrain and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cirques Of The United States
A (; from the Latin word ') is an amphitheatre-like valley formed by glacial erosion. Alternative names for this landform are corrie (from Scottish Gaelic , meaning a pot or cauldron) and (; ). A cirque may also be a similarly shaped landform arising from fluvial erosion. The concave shape of a glacial cirque is open on the downhill side, while the cupped section is generally steep. Cliff-like slopes, down which ice and glaciated debris combine and converge, form the three or more higher sides. The floor of the cirque ends up bowl-shaped, as it is the complex convergence zone of combining ice flows from multiple directions and their accompanying rock burdens. Hence, it experiences somewhat greater erosion forces and is most often overdeepened below the level of the cirque's low-side outlet (stage) and its down-slope (backstage) valley. If the cirque is subject to seasonal melting, the floor of the cirque most often forms a tarn (small lake) behind a dam, which marks the down ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cascades Volcano Observatory
The David A. Johnston Cascades Volcano Observatory (CVO) is a volcano observatory in the US that monitors volcanoes in the northern Cascade Range. It was established in the summer of 1980, after the eruption of Mount St. Helens.Google Books, ''Monitoring Volcanoes: Techniques and Strategies Used by the Staff of the Cascades Volcano Observatory, 1980-90'', Editors - John W. Ewert and Donald A. Swanson, Unit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Basalt
Basalt (; ) is an aphanite, aphanitic (fine-grained) extrusive igneous rock formed from the rapid cooling of low-viscosity lava rich in magnesium and iron (mafic lava) exposed at or very near the planetary surface, surface of a terrestrial planet, rocky planet or natural satellite, moon. More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt is chemically equivalent to slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. For example, the bulk of the plains of volcanism on Venus, Venus, which cover ~80% of the surface, are basaltic; the lunar mare, lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on the surface of Mars. Molten basalt lava has a low viscosity due to its relatively low silica content (between 45% and 52%), resulting in rapidly moving lava flo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andesite
Andesite () is a volcanic rock of intermediate composition. In a general sense, it is the intermediate type between silica-poor basalt and silica-rich rhyolite. It is fine-grained (aphanitic) to porphyritic in texture, and is composed predominantly of sodium-rich plagioclase plus pyroxene or hornblende. Andesite is the extrusive equivalent of plutonic diorite. Characteristic of subduction zones, andesite represents the dominant rock type in island arcs. The average composition of the continental crust is andesitic. Along with basalts, andesites are a component of the Martian crust. The name ''andesite'' is derived from the Andes mountain range, where this rock type is found in abundance. It was first applied by Christian Leopold von Buch in 1826. Description Andesite is an aphanitic (fine-grained) igneous rock that is intermediate in its content of silica and low in alkali metals. It has less than 20% quartz and 10% feldspathoid by volume, with at least 65% of the fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale million years ago. It is the second and most recent epoch of the Neogene Period in the . The Pliocene follows the Epoch and is followed by the Epoch. Prior to the 2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mirror Lake (Mount Hood, Oregon)
Mirror Lake is a mountain lake in Clackamas County of the U.S. state of Oregon. It is located at the foot of Tom Dick and Harry Mountain in a natural catchment formed by a toe of the mountain, southwest of Mount Hood, and WSW of Government Camp within Mount Hood National Forest. It is among the most popular day hikes in the Mount Hood area, and a popular Nordic skiing Nordic skiing encompasses the various types of skiing in which the toe of the ski boot is fixed to the Ski binding, binding in a manner that allows the heel to rise off the ski, unlike alpine skiing, where the boot is attached to the ski from toe ... destination. Its elevation gain in is considered an easy hike. References Lakes of Clackamas County, Oregon Lakes of Oregon Mountain lakes Protected areas of Clackamas County, Oregon Mount Hood National Forest {{ClackamasCountyOR-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Place Names Considered Unusual
Unusual place names are names for cities, towns, and other regions which are considered non-ordinary in some manner. This can include place names which are also offensive words, inadvertently humorous or highly charged words, as well as place names of unorthodox spelling and pronunciation, including especially short or long names. These names often have an unintended effect or double-meaning when read by someone who speaks another language. Profane, humorous, and highly charged words A number of settlements have names that are offensive or humorous in other languages, such as Rottenegg or Fucking (renamed to Fugging in 2021) in Austria, or Fjuckby in Sweden, where the name can be associated with the word "fuck". Although as a place name ''Fucking'' is benign in German, in English the word is usually vulgar. Similarly, when they hear of the French town of Condom, English speakers will likely associate it with condoms. Hel, Poland is a Polish seaside resort on the Hel Peninsu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
