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Eastern Oregon
Eastern Oregon is a region of the U.S. state of Oregon. It is not an officially recognized geographic entity; thus, the boundaries of the region vary according to context. It is sometimes understood to include only the eight easternmost counties in the state; in other contexts, it includes the entire area east of the Cascade Range. Cities in the basic eight-county definition include Baker City, Burns, Hermiston, Pendleton, Boardman, John Day, La Grande, and Ontario. Umatilla County is home to the largest population base in Eastern Oregon, accounting for 42% of the region's residents — more than twice that of the region’s second most populous, Malheur County. Hermiston, located in Umatilla County, is the largest city in the region, accounting for 10% of the population. Major industries include transportation/warehousing, timber, agriculture and tourism. The main transportation corridors are I-84, U.S. Route 395, U.S. Route 97, U.S. Route 26, U.S. Route 30, and U. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eo Pop
Eo or EO may refer to: Businesses and organizations * Education Otherwise, a home education organization * Elevorganisasjonen, a Norwegian student organization * Entrepreneurs' Organization, a nonprofit network * Evangelische Omroep, a public broadcaster in the Netherlands * Executive Outcomes, a South African military company * Express One International, an airline * Hewa Bora Airways (IATA code EO), a defunct airline in the Democratic Republic of the Congo Language * Eo (constructed language) * Esperanto (ISO code EO), a constructed language * eo (digraph), represents a single or two vowels in some languages * Eo (hangul) vowel in Korean Hangul Science and technology Computing * EO Personal Communicator, an early tablet computer produced by AT&T subsidiary EO, Inc. * Eight Ones, a character code * A line of tablet computers made by TabletKiosk Other uses in science and technology * "eo-" (derived from "Eos", meaning "dawn"), used to describe many early animals in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interstate 84 In Oregon
Interstate 84 (I-84) in the U.S. state of Oregon is a major Interstate Highway that traverses the state from west to east. It is concurrency (road), concurrent with U.S. Route 30 in Oregon, U.S. Route 30 (US 30) for most of its length and runs from an interchange with Interstate 5 in Oregon, I-5 in Portland, Oregon, Portland to the Idaho state line near Ontario, Oregon, Ontario. The highway roughly follows the Columbia River and historic Oregon Trail in northeastern Oregon, and is designated as part of Columbia River Highway No. 2 and all of the Old Oregon Trail Highway No. 6; the entire length is also designated as the Vietnam Veterans Memorial Highway. I-84 intersects several of the state's main north–south roads, including U.S. Route 97 in Oregon, US 97, U.S. Route 197, US 197, Interstate 82, I-82, and U.S. Route 395 in Oregon, US 395. The freeway serves as the main east–west route through Portland and Gresham, Oregon, Gresham and continues into the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alvord Desert
The Alvord Desert is a desert located in Harney County, in southeastern Oregon in the Western United States. It is roughly southeast of Steens Mountain. The Alvord Desert is a dry lake bed and averages of rain a year. Two mountain ranges separate it from the Pacific Ocean—the Coast Range, and the Cascade Mountains. Along with Steens Mountain, these topographical features create a rain shadow. The Alvord Desert lies at an elevation of approximately . During the dry season the surface is sufficiently flat for driving or landing small aircraft. Vehicle driving attempts to score land speed records are performed on the dry lake bed. The women's world land speed record was set in 1976 by Kitty O'Neil at , later surpassed in 2019 by Jessi Combs at , although the latter died in the process because of a crash. The nearest community is Fields, Oregon. Name The desert is named after General Benjamin Alvord, who served as commander of the U.S. Army's Department of Oregon du ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia River Basalt Group
The Columbia River Basalt Group (CRBG) is the youngest, smallest and one of the best-preserved continental flood basalt provinces on Earth, covering over mainly eastern Oregon and Washington, western Idaho, and part of northern Nevada. The basalt group includes the Steens and Picture Gorge basalt formations. Introduction During the middle to late Miocene epoch, the Columbia River flood basalts engulfed about of the Pacific Northwest, forming a large igneous province with an estimated volume of . Eruptions were most vigorous 17–14 million years ago, when over 99 percent of the basalt was released. Less extensive eruptions continued 14–6 million years ago. Erosion resulting from the Missoula Floods has extensively exposed these lava flows, laying bare many layers of the basalt flows at Wallula Gap, the lower Palouse River, the Columbia River Gorge and throughout the Channeled Scablands. The Columbia River Basalt Group is thought to be a potential link ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flood Basalt
A flood basalt (or plateau basalt) is the result of a giant volcanic eruption or series of eruptions that covers large stretches of land or the ocean floor with basalt lava. Many flood basalts have been attributed to the onset of a hotspot (geology), hotspot reaching the surface of the Earth via a mantle plume. List of flood basalt provinces, Flood basalt provinces such as the Deccan Traps of India are often called ''Trap rock, traps'', after the Swedish word ''trappa'' (meaning "staircase"), due to the characteristic stairstep geomorphology of many associated landscapes. Michael R. Rampino and Richard Stothers (1988) cited eleven distinct flood basalt episodes occurring in the past 250 million years, creating large igneous provinces, lava plateaus, and mountain ranges. However, more have been recognized such as the large Ontong Java Plateau, and the Chilcotin Group, though the latter may be linked to the Columbia River Basalt Group. Large igneous provinces have been connected to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steens Mountain
Steens Mountain is a large fault-block mountain in the northwest United States, located in Harney County, Oregon. Stretching some north to south, on its east side it rises from the Alvord Desert at an elevation of about to at the summit. Steens Mountain is not part of a mountain range but is properly a single mountain, the largest of Oregon's fault-block mountains.Conkling, C., Jackman, E. R., & Scharff, J. (1967)Steens Mountain in Oregon's high desert country Caxton Press. Retrieved April 25, 2022 The Steens Mountain Wilderness encompasses of Steens Mountain. of the Wilderness are protected from grazing and free of cattle. Geology Steens Mountain is the remnant of a long shield volcano. The east face of Steens Mountain is composed mainly of basalts stacked one upon another. Lava flows several hundreds of feet thick inundated the region between 17 and 14 million years ago. Chemical data from magma deposits from the area reveal three distinct stages of volcanism. Layers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochoco Mountains
The Ochoco Mountains are a mountain range in central Oregon in the United States, located at the western end of the Blue Mountains (Pacific Northwest), Blue Mountains. They were formed when Permian, Triassic, and Jurassic rocks were slowly uplifted by Types of volcanic eruptions, volcanic eruptions to form the John Day Fossil Beds National Monument, Clarno Formation. Today, the highest point in the range is Lookout Mountain. The dominant vegetation on the west side of the range is old-growth Pinus ponderosa, ponderosa pine; on the east side, Juniperus occidentalis, western juniper is common. The western area of the mountains is administered by the Ochoco National Forest, while the southeastern section is part of the Malheur National Forest. The Ochoco Mountains draw visitors for hiking, camping, bird watching, rockhounding, and hunting, as well as cross-country skiing in the winter. Geography The Ochoco Mountains run north to south and east to west. The eight highest peak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trout Creek Mountains
The Trout Creek Mountains are a remote, semi-arid Great Basin mountain range mostly in southeastern Oregon and partially in northern Nevada in the United States. The range's highest point is Orevada View Benchmark, above sea level, in Nevada. Disaster Peak, elevation , is another prominent summit in the Nevada portion of the mountains. The mountains are characteristic of the Great Basin's topography of mostly parallel mountain ranges alternating with flat valleys. Oriented generally north to south, the Trout Creek Mountains consist primarily of fault blocks of basalt, which came from an ancient volcano and other vents, on top of older metamorphic rocks. The southern end of the range, however, features many granitic outcrops. As a whole, the faulted terrain is dominated by rolling hills and ridges cut by escarpments and canyons. Most of the range is public land administered by the federal Bureau of Land Management. There is very little human development in the remote region� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wallowa Mountains
The Wallowa Mountains () are a mountain range located in the Columbia Plateau of northeastern Oregon in the United States. The range runs approximately northwest to southeast in southwestern Wallowa County and eastern Union County between the Blue Mountains to the west and the Snake River to the east. The range is sometimes considered to be an eastern spur of the Blue Mountains, and it is known as the "Alps of Oregon". Much of the range is designated as the Eagle Cap Wilderness, part of the Wallowa–Whitman National Forest. Geography The range is drained by the Wallowa River, which flows from the north side of the mountains, and its tributary the Minam River, which flows through the west side of the range. The Imnaha River flows from the east side of the range. The highest point in the range is Sacajawea Peak, which is above sea level. Sacajawea is the sixth highest mountain in Oregon and the state's highest peak outside of the Cascade Range. Geology Many geologists ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strawberry Mountains
The Strawberry Range, also known as the Strawberry Mountains, is a mountain range in the U.S. state of Oregon. It is east of John Day, within Malheur National Forest. The highest peak, Strawberry Mountain, is the most prominent feature of the Strawberry Mountain Wilderness and the 30th highest point in Oregon. The Strawberry Range is part of the larger Blue Mountains range, and contains the Strawberry Mountain Wilderness. Pioneers named Strawberry Mountain after observing prolific wild strawberries growing in a nearby valley. The area has extremely diverse ecological composition, which includes five of seven major life zones in North America. Indigenous populations of Rocky Mountain Elk exist as well as mule deer, antelope, black bear, cougar, California bighorn sheep, ruffed and blue grouse, pileated woodpecker, sharp-shinned hawk, bald eagle, pine marten, mink, beaver. There are 378 animal and 22 fish species present. Mountain goats are seen at the higher elevations of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Blue Mountains (Pacific Northwest)
The Blue Mountains are a mountain range in the northwestern United States, located largely in northeastern Oregon and stretching into extreme southeastern Washington. The range has an area of about , stretching east and southeast of Pendleton, Oregon, to the Snake River along the Oregon–Idaho border. The Blue Mountains cover ten counties across two states; they are Union, Umatilla, Grant, Baker, Wallowa and Harney counties in Oregon, and Walla Walla, Columbia, Garfield and Asotin counties in Washington. The Blue Mountains were named after the color of the mountains when seen from a distance and the blue hue imparted by the smoke of forest and range fires set by Indigenous people as management tools in the fall. The Blue Mountains are unique as the home of the world's largest living organism, a subterranean colonial mycelial mat of the fungus ''Armillaria ostoyae''. Geography The Blue Mountains include several mountain ranges, from the Ochoco Mountains and Maury Mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rain Shadow
A rain shadow is an area of significantly reduced rainfall behind a mountainous region, on the side facing away from prevailing winds, known as its leeward side. Evaporated moisture from body of water, bodies of water (such as oceans and large lakes) is carried by the prevailing sea breeze, onshore breezes towards the drier and hotter inland areas. When encountering elevated landforms, the moist air is orographic lift, driven upslope towards the summit, peak, where it expands, cools, and its moisture condenses and starts to Precipitation, precipitate. If the landforms are tall and wide enough, most of the humidity will be lost to precipitation over the windward side (also known as the ''rainward'' side) before ever making it past the top. As the air descends the leeward side of the landforms, it is compressed and heated, producing Foehn winds that ''absorb'' moisture downslope and cast a broad "shadow" of arid, dry climate region behind the ridge, mountain crests. This climate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
