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Trinity Alps
The Trinity Alps are a mountain range in Trinity County and Siskiyou County in Northern California. They are a subrange of the Klamath Mountains located to the north of Weaverville. Geography The Trinity Alps are within the Pacific Coast Ranges physiographic region, in the Klamath Mountains System, which lies between the California Coast Ranges to the west and the Cascade Range to the east. Elevations range from to on Thompson Peak. Other notable peaks include Granite Peak () and Ycatapom Peak (). The Trinity Alps are noted for their scenic views and alpine environment. The range's alpine flora differs from that found in the Sierra Nevada or the Cascades. Within the Klamath Mountains, adjacent subranges of the Trinity Alps include the Salmon Mountains and Scott Mountains. The Trinity Alps Wilderness covers , making it the second largest wilderness area in California. The area was formerly known as the Salmon-Trinity Alps Primitive Area since 1932 until a series of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shasta Cascade
The Shasta Cascade region of California is located in the northeastern and north-central sections of the state bordering Oregon and Nevada, including far northern parts of the Central Valley and the Sierra Nevada mountain range. History Indigenous cultures Historically, the Shasta Cascade region was home to Native Americans of the Modoc, Maidu, Okwanuchu, Paiute, Shasta, Wintu, and Yana tribes, and sub-groups of those tribes. Colonialism The first non-Native Americans entered the Shasta Cascade region by coming south along the Siskiyou Trail from Oregon, or north along the Siskiyou Trail from central California or the San Francisco Bay Area. These earliest explorers were probably British and American fur-trappers and traders in the 1820s and 1830s, although it is also possible that Spanish explorers reached the southern edge of the Shasta Cascade region before 1820. Gold rush The discovery of gold in 1851 at Yreka (and throughout Siskiyou and Trinity counties) brough ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Salmon Mountains
The Salmon Mountains are a subrange of the Klamath Mountains in Siskiyou County, northwestern California. Geography The Salmon Mountains are a sub-mountain range within the Klamath Mountains System. The Klamath system are of the Pacific Coast Ranges series of mountain range systems that stretch along the West Coast of North America. The Salmon range is within sections of the Klamath National Forest, Shasta-Trinity National Forest, and Six Rivers National Forest and includes portions of the Trinity Alps Wilderness Area, Russian Wilderness Area, and Marble Mountain Wilderness Area. The Yurok and Hoopa Valley Indian Reservations are to the west. California State Route 299 runs along the south of the range. Ecology ;Ecoregion The Salmon Mountains are within the Klamath-Siskiyou forests — Klamath Mountains ecoregion, which is part of the Temperate coniferous forests Biome. ;Flora Plant communities in the range include: *California mixed evergreen forest *Cedar hemlock dougla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picea Engelmannii
''Picea engelmannii'', with the common names Engelmann spruce, white spruce, mountain spruce, and silver spruce, is a species of spruce native to western North America. It is mostly a high-altitude mountain tree but also appears in watered canyons. Description ''Picea engelmannii'' is a medium-sized to large evergreen tree growing to tall, exceptionally to tall, and with a trunk diameter of up to . The reddish bark is thin and scaly, flaking off in small circular plates across. The crown is narrow conic in young trees, becoming cylindric in older trees. The shoots are buff-brown to orange-brown, usually densely pubescent, and with prominent pulvini. The leaves are needle-like, long, flexible, rhombic in cross-section, glaucous blue-green above with several thin lines of stomata, and blue-white below with two broad bands of stomata. The needles have a pungent odour when crushed. Purple cones of about 1 cm appear in spring, releasing yellow pollen when windy. The cones are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abies Amabilis
''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, lovely fir, Amabilis fir, Cascades fir, or silver fir. The species name is Latin for 'lovely'. Description The tree is a large evergreen conifer growing to , exceptionally tall, and with a trunk diameter of up to , exceptionally . The bark on younger trees is light grey, thin and covered with resin blisters. On older trees, it darkens and develops scales and furrows. The leaves are needle-like, flattened, long and wide by thick, matte dark green above, and with two white bands of stomata below, and slightly notched at the tip. The leaf arrangement is spiral on the shoot, but with each leaf variably twisted at the base so they lie flat to either side of and above the shoot, with none below the shoot. The shoots are orange-red with dense v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abies Lasiocarpa
''Abies lasiocarpa'', the subalpine fir or Rocky Mountain fir, is a western North American fir tree. Description ''Abies lasiocarpa'' is a medium-sized evergreen conifer with a very narrow conic crown, growing to tall, exceptionally , with a trunk up to thick, exceptionally . The bark on young trees is smooth, gray, and with resin blisters, becoming rough and fissured or scaly on old trees. The lowest branches can be observed growing above ground level. The leaves are flat and needle-like, long, glaucous green above with a broad stripe of stomata, and two blue-white stomatal bands below; the fresh leaf scars are reddish (tan on the inland variety). They are arranged spirally on the shoot, but with the leaf bases twisted to be arranged to the sides of and above the shoot, with few or none below the shoot. The cones are erect, long, dark purple with fine yellow-brown pubescence, ripening brown and disintegrating to release the winged seeds in early fall. Taxonomy There are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Climate
A Mediterranean climate (also called a dry summer temperate climate ''Cs'') is a temperate climate sub-type, generally characterized by warm, dry summers and mild, fairly wet winters; these weather conditions are typically experienced in the majority of Mediterranean-climate regions and countries, but remain highly dependent on proximity to the ocean, altitude and geographical location. This climate type's name is in reference to the coastal regions of the Mediterranean Sea within the Mediterranean Basin, where this climate type is most prevalent. The "original" Mediterranean zone is a massive area, its western region beginning with the Iberian Peninsula in southwestern Europe and coastal regions of northern Morocco, extending eastwards across southern Europe, the Balkans, and coastal Northern Africa, before reaching a dead-end at the Levant region's coastline. Mediterranean climate zones are typically located along the western coasts of landmasses, between roughly 30 and 45 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Klamath Mountains (ecoregion)
The Klamath Mountains ecoregion of Oregon and California lies inland and north of the Coast Range ecoregion, extending from the Umpqua River in the north to the Sacramento Valley in the south. It encompasses the highly dissected ridges, foothills, and valleys of the Klamath and Siskiyou Mountains. It corresponds to the Level III ecoregion designated by the Environmental Protection Agency and to the Klamath-Siskiyou forests ecoregion designated by the World Wide Fund for Nature. The ecoregion, also known as a ''geomorphic province,'' was unglaciated during the Pleistocene epoch, when it served as a refuge for northern plant species. Its mix of granitic, sedimentary, metamorphic, and extrusive rocks contrasts with the predominantly volcanic rocks of the Cascades ecoregion to the northeast. The mild, subhumid climate of the region is characterized by a lengthy summer drought. It supports a mosaic of both northern Californian and Pacific Northwestern conifers and hardwoods. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lassen Peak
Lassen Peak ( ), commonly referred to as Mount Lassen, is a lava dome volcano and the southernmost active volcano in the Cascade Range of the Western United States. Located in the Shasta Cascade region of Northern California, it is part of the Cascade Volcanic Arc, which stretches from southwestern British Columbia to northern California. Lassen Peak reaches an elevation of , standing above the northern Sacramento Valley. It supports many flora and fauna among its diverse habitats, which are subject to frequent snowfall and reach high elevations. Lassen Peak has a volume of , making it one of the largest lava domes on Earth. The volcano arose from the former northern flank of now-eroded Mount Tehama about 27,000 years ago, from a series of eruptions over the course of a few years. The mountain has been significantly eroded by glaciers over the last 25,000 years, and is now covered in talus deposits. On May 22, 1915, a powerful explosive eruption at Lassen Peak devastated near ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lichen
A lichen ( , ) is a composite organism that arises from algae or cyanobacteria living among filaments of multiple fungi species in a mutualistic relationship.Introduction to Lichens – An Alliance between Kingdoms . University of California Museum of Paleontology. Lichens have properties different from those of their component organisms. They come in many colors, sizes, and forms and are sometimes plant-like, but are not s. They may have tiny, leafless branches (); flat leaf-like structures ( |
Sapphire Lake (Trinity County, California)
Sapphire Lake is a lake located in the Trinity Alps Wilderness area, in Northern California. The lake sits in a granite bowl, where it is fed by rainwater that runs down the surrounding mountains. Sapphire Lake sits just southwest of, and approximately above Emerald Lake (Trinity County, California), Emerald Lake. The surface of the lake is above sea level. Visitors can access the lake by hiking the Stuart Fork Trail and continuing past Emerald Lake. See also *List of lakes in California References Klamath Mountains Lakes of Trinity County, California Lakes of California Lakes of Northern California {{TrinityCountyCA-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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#Glaciology, ablation over many years, often Century, centuries. It acquires distinguishing features, such as Crevasse, crevasses and Serac, 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 lati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snow
Snow comprises individual ice crystals that grow while suspended in the atmosphere—usually within clouds—and then fall, accumulating on the ground where they undergo further changes. It consists of frozen crystalline water throughout its life cycle, starting when, under suitable conditions, the ice crystals form in the atmosphere, increase to millimeter size, precipitate and accumulate on surfaces, then metamorphose in place, and ultimately melt, slide or sublimate away. Snowstorms organize and develop by feeding on sources of atmospheric moisture and cold air. Snowflakes nucleate around particles in the atmosphere by attracting supercooled water droplets, which freeze in hexagonal-shaped crystals. Snowflakes take on a variety of shapes, basic among these are platelets, needles, columns and rime. As snow accumulates into a snowpack, it may blow into drifts. Over time, accumulated snow metamorphoses, by sintering, sublimation and freeze-thaw. Where the climate is co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
