Trask Mountain

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Trask Mountain
USA Oregon location map.svg
Red triangle with thick white border.svg
Trask Mountain
Highest point
Elevation 3,426 ft (1,044 m)   NAVD 88 [1]
Prominence 3,424 ft (1,044 m)  [2]
Listing Oregon county high points
Coordinates 45°22′16″N123°27′21″W / 45.371236781°N 123.455773206°W / 45.371236781; -123.455773206 Coordinates: 45°22′16″N123°27′21″W / 45.371236781°N 123.455773206°W / 45.371236781; -123.455773206   [1]
Geography
Location Yamhill County, Oregon, U.S.
Parent range Northern Oregon Coast Range
Topo map USGS Trask Mountain
Climbing
Easiest route Trask Toll Road to just below the summit. [3]

Trask Mountain in the Northern Oregon Coast Range, is the tallest mountain in Yamhill County, Oregon. [4] It is located in the northwest corner of the county. [5] Evidently the mountain was named for Elbridge Trask who settled west of the peak in Tillamook County in 1852.

Northern Oregon Coast Range mountain in United States of America

The Northern Oregon Coast Range is the northern section of the Oregon Coast Range, in the Pacific Coast Ranges physiographic region, located in the northwest portion of the state of Oregon, United States. This section of the mountain range, part of the Pacific Coast Ranges, contains peaks as high as 3,710 feet (1,131 m) for Rogers Peak. Forests in these mountains are considered to be some of the most productive timber land in the world. The Central Oregon Coast Range is directly south of this section with the Southern Oregon Coast Range beyond the central range.

Yamhill County, Oregon U.S. county in Oregon

Yamhill County is a county in the U.S. state of Oregon. As of the 2010 census, the population was 99,193. The county seat is McMinnville. The name's origin is probably an explorer's name for a local Native American tribe, the Yamhill, who are part of the North Kalapuyan family.

Elbridge Trask Oregon pioneer

Elbridge Trask also known as Eldridge Trask was an American fur trapper and mountain man in the Oregon Country. Immortalized by a series of modern historical novels by Don Berry, he is best known as an early white settler along Tillamook Bay on the coast of the U.S. state of Oregon. The Trask River and Trask Mountain along the Northern Oregon Coast Range are also named after him.

Contents

Geology

The mountain is composed of mainly volcanic rock with some sedimentary rocks. [6] Like much of the northern section of the Oregon Coast Range, the origins began around 40 million years ago during the Eocene period. During this era, sandstone and siltstone formed in the area. [7] Additionally, igneous rocks and basalt flows combined with basaltic sandstone to create many of the mountainous formations. The volcanic rocks come from basalt flows that originated from fissures in the central portion of Oregon and covered much of the state. [8] Additional sedimentary rock was formed more recently, around 20 million years ago. [7]

Oregon Coast Range

The Oregon Coast Range, often called simply the Coast Range and sometimes the Pacific Coast Range, is a mountain range, in the Pacific Coast Ranges physiographic region, in the U.S. state of Oregon along the Pacific Ocean. This north-south running range extends over 200 miles (320 km) from the Columbia River in the north on the border of Oregon and Washington, south to the middle fork of the Coquille River. It is 30 to 60 miles wide and averages around 1,500 feet (460 m) in elevation above sea level. The coast range has three main sections, a Northern, Central, and Southern.

The Eocene Epoch, lasting from 56 to 33.9 million years ago, is a major division of the geologic timescale and the second epoch of the Paleogene Period in the Cenozoic Era. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope 13C in the atmosphere was exceptionally low in comparison with the more common isotope 12C. The end is set at a major extinction event called the Grande Coupure or the Eocene–Oligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay. As with other geologic periods, the strata that define the start and end of the epoch are well identified, though their exact dates are slightly uncertain.

Sandstone A clastic sedimentary rock composed mostly of sand-sized particles

Sandstone is a clastic sedimentary rock composed mainly of sand-sized mineral particles or rock fragments.

All of the coast range lies over a convergent tectonic margin interacting with the Juan de Fuca Plate that is subducting beneath North America tectonic plate in the Cascadia subduction zone. [9] The mountains are created by the plunging structural arch of sedimentary and Tertiary volcanic strata that is being uplifted. [8]

Juan de Fuca Plate A small tectonic plate in the eastern North Pacific

The Juan de Fuca Plate is a tectonic plate generated from the Juan de Fuca Ridge that is subducting under the northerly portion of the western side of the North American Plate at the Cascadia subduction zone. It is named after the explorer of the same name. One of the smallest of Earth's tectonic plates, the Juan de Fuca Plate is a remnant part of the once-vast Farallon Plate, which is now largely subducted underneath the North American Plate.

Cascadia subduction zone Convergent plate boundary that stretches from northern Vancouver Island to Northern California

The Cascadia subduction zone is a convergent plate boundary that stretches from northern Vancouver Island in Canada to Northern California in the United States. It is a very long, sloping subduction zone where the Explorer, Juan de Fuca, and Gorda plates move to the east and slide below the much larger mostly continental North American Plate. The zone varies in width and lies offshore beginning near Cape Mendocino Northern California, passing through Oregon and Washington, and terminating at about Vancouver Island in British Columbia.

Flora and fauna

Vegetation in the area includes Sitka spruce, Douglas-fir, western hemlock, western redcedar, salmonberry, red alder, western sword fern, and vine maple among many others. [10] Other plant life native to the mountains are Coptis laciniata , salal, Oregon-grape, and bracken fern. [11] [12] [13]

<i>Thuja plicata</i> species of plant

Thuja plicata, commonly called western red cedar or Pacific red cedar, giant arborvitae or western arborvitae, giant cedar, or shinglewood, is a species of Thuja, an evergreen coniferous tree in the cypress family Cupressaceae native to western North America. It is not a true cedar of the genus Cedrus.

<i>Polystichum munitum</i> species of plant

Polystichum munitum, the western swordfern, is an evergreen fern native to western North America, where it is one of the most abundant ferns. It occurs along the Pacific coast from southeastern Alaska to southern California, and also inland east to southeastern British Columbia, northern Idaho and western Montana, with disjunctive populations in northern British Columbia, Canada; the Black Hills in South Dakota, United States; and Guadalupe Island off of Baja California, Mexico. Western swordfern is known to have locally naturalized in parts of Great Britain and Ireland.

Coptis laciniata is a species of flowering plant in the buttercup family known by the common name Oregon goldthread. It is native to Washington, Oregon, and northern California on the west coast of the United States, where it grows in wet habitat in the understory of mountain and coastal coniferous forests. It is a small perennial herb creeping on a yellow stolon through other vegetation and leaf litter. There are a few leaves on its short stem which are divided into leaflets subdivided into several toothed lobes. The stemlike inflorescence arises up to 19 centimeters tall from the stem at ground level. Each flower is an array of thin, threadlike petals. Six to 12 fruits arise on short stalks, arranged in a ring. The fruits are shiny, hairless follicles, each roughly a centimeter long.

Different insects can include spiders, beetles, and various centipedes. [11] [13] Mammals include weasels, chipmunks, black bears, hares and deer. [11] Birds include kinglets, chickadees, woodpeckers, and jays. [11]

Spider Order of arachnids

Spiders are air-breathing arthropods that have eight legs and chelicerae with fangs able to inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all orders of organisms. Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exceptions of air and sea colonization. As of July 2019, at least 48,200 spider species, and 120 families have been recorded by taxonomists. However, there has been dissension within the scientific community as to how all these families should be classified, as evidenced by the over 20 different classifications that have been proposed since 1900.

Beetle Order of insects

Beetles are a group of insects that form the order Coleoptera, in the superorder Endopterygota. Their front pair of wings are hardened into wing-cases, elytra, distinguishing them from most other insects. The Coleoptera, with about 400,000 species, is the largest of all orders, constituting almost 40% of described insects and 25% of all known animal life-forms; new species are discovered frequently. The largest of all families, the Curculionidae (weevils) with some 83,000 member species, belongs to this order. Found in almost every habitat except the sea and the polar regions, they interact with their ecosystems in several ways: beetles often feed on plants and fungi, break down animal and plant debris, and eat other invertebrates. Some species are serious agricultural pests, such as the Colorado potato beetle, while others such as Coccinellidae eat aphids, scale insects, thrips, and other plant-sucking insects that damage crops.

Centipede Class of many-legged arthropods with elongated bodies

Centipedes are predatory arthropods belonging to the class Chilopoda of the subphylum Myriapoda, an arthropod group which also includes Millipedes and other multi-legged creatures. Centipedes are elongated metameric creatures with one pair of legs per body segment. Most centipedes are generally venomous and could inflict a painful bite, injecting their venom through pincer-like appendage known as forcipules. Despite the name, centipedes can have a varying number of legs, ranging from 30 to 354. Centipedes always have an odd number of pairs of legs. Therefore, no centipede has exactly 100 legs. Similar to spiders and scorpions, centipedes are predominantly carnivorous.

Other

In the northwest part of the county, the mountain is in private forest land owned by Weyerhaeuser. [14] Trask Mountain makes up a portion of the North Yamhill River headwaters that drain to the Willamette River. [6] On its north side, drainage is to the Trask River which flows west to the Pacific Ocean. [10] The mountain receives over 135 inches (3,400 mm) of precipitation each year. [6] The mountain is home to a U.S. Geologic Survey seismograph station that was installed in 1991. [15] Previously, the peak was home to a fire lookout station that was abandoned in the 1970s. [16] There are plans to construct a 50 Megawatt wind power facility atop the mountain beginning in 2009. [17]

WeyerhaeuserCompany, is one of the world's largest private owners of timberlands, owning or controlling nearly 12.4 million acres of timberlands in the U.S. and managing additional 14.0 million acres timberlands under long-term licenses in Canada. The company also manufactures wood products. Weyerhaeuser is a real estate investment trust.

North Yamhill River river in the United States of America

The North Yamhill River is a 31-mile (50 km) tributary of the Yamhill River in the U.S. state of Oregon. It drains an area of the Northern Oregon Coast Range, as well as part of the Willamette Valley west of the Willamette River.

Willamette River major river in northwest Oregon

The Willamette River is a major tributary of the Columbia River, accounting for 12 to 15 percent of the Columbia's flow. The Willamette's main stem is 187 miles (301 km) long, lying entirely in northwestern Oregon in the United States. Flowing northward between the Oregon Coast Range and the Cascade Range, the river and its tributaries form the Willamette Valley, a basin that contains two-thirds of Oregon's population, including the state capital, Salem, and the state's largest city, Portland, which surrounds the Willamette's mouth at the Columbia.

In 1997, Dundee, Oregon, resident Lee John Knoch beat Robert Allen Holliday nearly to death and buried him alive on Trask Mountain. [18]

See also

Related Research Articles

Lebombo Mountains mountain range

The Lebombo Mountains, also called Lubombo Mountains, are an 800 km-long (500 mi), narrow range of mountains in Southern Africa. They stretch from Hluhluwe in KwaZulu-Natal in the south to Punda Maria in the Limpopo Province in South Africa in the north. Parts of the mountain range are also found in Mozambique and Eswatini.

Salmon River (Lincoln County, Oregon) river in Lincoln County, Oregon

The Salmon River flows from the Central Oregon Coast Range to the Pacific Ocean coast of northwest Oregon in the United States. About 24 miles (39 km) long, it begins and ends in Lincoln County but also flows briefly through western Polk and southern Tillamook counties. Much of its course lies within the Siuslaw National Forest.

Trask River river in Oregon

The Trask River is in northwestern Oregon in the United States. It drains a mountainous timber-producing area of the Northern Oregon Coast Range west of Portland into Tillamook Bay and the Pacific Ocean. It is one of five rivers—the Tillamook, the Trask, the Wilson, the Kilchis, and the Miami—that flow into the bay.

Wilson River (Oregon) river in the United States of America

The Wilson River, about 33 miles (53 km) long, flows from the Northern Oregon Coast Range to Tillamook Bay in the U.S. state of Oregon. Formed by the confluence of its Devil's Lake Fork and its South Fork, it runs generally west through the Tillamook State Forest to its mouth near the city of Tillamook. It is one of five rivers—the Tillamook, the Trask, the Wilson, the Kilchis, and the Miami—that flow into the bay.

Kilchis River river in the United States of America

The Kilchis River is a stream, about 14 miles (23 km) long, near the coast of northwest Oregon in the United States. It drains a mountainous timbered region of about 65 square miles (170 km2) in the Northern Oregon Coast Range west of Portland.

Miami River (Oregon) river in United States of America

The Miami River is a stream, approximately 13 miles (21 km) long, on the coast of northwest Oregon in the United States. It drains a mountainous timbered region of the Northern Oregon Coast Range west of Portland, into Pacific Ocean.

Tillamook River river in the United States of America

The Tillamook River is a stream, about 17 miles (27 km) long, near the coast of northwest Oregon in the United States. It drains an oceanside valley in the foothills of the Northern Oregon Coast Range west of Portland and empties into the Pacific Ocean via Tillamook Bay. It is one of five rivers—the Tillamook, the Trask, the Wilson, the Kilchis, and the Miami—that flow into the bay.

Nehalem River river in the United States of America

The Nehalem River is a river on the Pacific coast of northwest Oregon in the United States, approximately 119 miles (192 km) long. It drains part of the Northern Oregon Coast Range northwest of Portland, originating on the east side of the mountains and flowing in a loop around the north end of the range near the mouth of the Columbia River. Its watershed of 855 square miles (2,210 km2) includes an important timber-producing region of Oregon that was the site of the Tillamook Burn. In its upper reaches it flows through a long narrow valley of small mountain communities but is unpopulated along most of its lower reaches inland from the coast. The city where the river flows into the Pacific is also used as the name for CPU manufacturing titan Intel's first-generation line of Core processors.

Calapooya Mountains mountain range

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Volcanology of Canada

Volcanology of Canada includes lava flows, lava plateaus, lava domes, cinder cones, stratovolcanoes, shield volcanoes, submarine volcanoes, calderas, diatremes, and maars, along with examples of more less common volcanic forms such as tuyas and subglacial mounds. It has a very complex volcanological history spanning from the Precambrian eon at least 3.11 billion years ago when this part of the North American continent began to form.

Yamsay Mountain mountain in United States of America

Yamsay Mountain is a large shield volcano in the Cascade Range of south-central Oregon, located about 35 miles (56 km) east of Crater Lake on the border between Klamath County and Lake County. It is part of the Cascade Volcanic Arc but is located in a mountain range 30 to 50 miles behind the main Cascade volcanic front. The best known members of this enigmatic arc are the massive shields of Newberry Volcano, about 55 miles (89 km) farther north in Oregon, and Medicine Lake Volcano, about 80 miles (130 km) south in Northern California. Yamsay is the highest volcano in the eastern arc, almost 300 feet (90 m) higher than Newberry and Medicine Lake.

Saddle Mountain (Clatsop County, Oregon) mountain in United States of America

Saddle Mountain is the tallest mountain in Clatsop County in the U.S. state of Oregon. Part of the Oregon Coast Range, Saddle Mountain is in Saddle Mountain State Natural Area in the northwest corner of Oregon. The peak is listed on Oregon's Register of Natural Heritage Resources.

South Saddle Mountain mountain in United States of America

South Saddle Mountain is the tallest mountain in Washington County, Oregon, United States. Part of the Oregon Coast Range, the peak is located in the Tillamook State Forest in the northwest section of the state of Oregon. It is the eighth-highest peak of the Oregon Coast Range.

Rogers Peak US mountain

Rogers Peak is the highest mountain in Tillamook County, Oregon. In the Tillamook State Forest, the peak is also the highest peak in the Northern Oregon Coast Range, which is the northern section of the Oregon Coast Range.

Siletz River Volcanics A sequence of basaltic pillow lavas that make up part of Siletzia

The Siletz River Volcanics, located in the Oregon Coast Range, United States, are a sequence of basaltic pillow lavas that make up part of Siletzia. The basaltic pillow lavas originally came from submarine volcanoes that existed during the Eocene.

Silverthrone Caldera Stratovolcano in Canada

The Silverthrone Caldera is a potentially active caldera complex in southwestern British Columbia, Canada, located over 350 kilometres (220 mi) northwest of the city of Vancouver and about 50 kilometres (31 mi) west of Mount Waddington in the Pacific Ranges of the Coast Mountains. The caldera is one of the largest of the few calderas in western Canada, measuring about 30 kilometres (19 mi) long (north-south) and 20 kilometres (12 mi) wide (east-west). Mount Silverthrone, an eroded lava dome on the caldera's northern flank that is 2,864 metres (9,396 ft) high may be the highest volcano in Canada.

Willamina Creek river in the United States of America

Willamina Creek is a tributary, about 20 miles (32 km) long, of the South Yamhill River in the U.S. state of Oregon. Beginning in the Northern Oregon Coast Range in Yamhill County, it briefly enters and exits a small part of eastern Tillamook County, then flows generally south to meet the larger stream at Willamina, near the border with Polk County.

References

  1. 1 2 "Trask Reset". NGS data sheet. U.S. National Geodetic Survey . Retrieved 2008-11-07.
  2. ↑ "Trask Mountain". Peakbagger.com. Retrieved 2008-04-03.
  3. ↑ Jones, Ken. "Yamhill County high Point Trip Report". County highpointers. Retrieved 2008-04-03.
  4. ↑ "Oregon County High Points". Peakbagger.com. Retrieved 2008-04-03.
  5. ↑ "Trask Mountain". Geographic Names Information System . United States Geological Survey . Retrieved 2008-11-07.
  6. 1 2 3 "North Yamhill Watershed" (PDF). Yamhill County. Archived from the original (PDF) on 2007-09-27. Retrieved 2008-04-03.
  7. 1 2 "Upper Nehalem Watershed Analysis" (PDF). Oregon Department of Forestry. Archived from the original (PDF) on 2006-12-03. Retrieved 2008-04-03.
  8. 1 2 "Geologic Map of the Tillamook Highlands, Northwest Oregon Coast Range". U.S. Geological Survey. Retrieved 2008-04-03.
  9. ↑ "Geology of the Luckiamute River Watershed, Upper Willamette Basin, Polk and Benton Counties, Oregon" (PDF). Western Oregon University. Archived from the original (PDF) on 2012-02-07. Retrieved 2008-04-03.
  10. 1 2 "ODF: Trask River Watershed" (PDF). Oregon Department of Forestry. Archived from the original (PDF) on 2012-02-12. Retrieved 2008-04-03.
  11. 1 2 3 4 Macnab, James A. (January 1958). "Biotic Aspection in the Coast Range Mountains of Northwestern Oregon". Ecological Monographs. Ecological Monographs, Vol. 28, No. 1. 28 (1): 21–54. doi:10.2307/1942274. JSTOR   1942274.
  12. ↑ "Management Recommendations for Spleenwort-leaved Goldthread". Bureau of Land Management. Retrieved 2008-03-31.
  13. 1 2 "From the Forest to the Sea: A Story of Fallen Trees". Tree Dictionary. Retrieved 2008-03-31.
  14. ↑ Howbert, Jeff. "Yamhill County High Point 2". County Highpointers. Retrieved 2008-03-31.
  15. ↑ "Seismograph Station Codes Listed Alphabetically: T." U.S. Geological Survey. Archived from the original on 2006-04-19. Retrieved 2008-03-31.CS1 maint: BOT: original-url status unknown (link)
  16. ↑ McOmie, Grant. "When 'Cloud Girls' watched over the woods". katu.com. Archived from the original on 2007-09-27. Retrieved 2008-03-31.
  17. ↑ "Trask Mountain: Yamhill County, Oregon". Everpower Renewables. Retrieved 2008-03-31.
  18. ↑ Tims, Dana (March 28, 1998). "Dundee man guilty of 1997 murder". The Oregonian . Portland, Oregon.
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