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Dark Divide
The Dark Divide is the largest roadless area in western Washington state, comprising approximately 76,000 acres (310 km2) of intact wilderness on Juniper Ridge linking Mount St. Helens and Mount Adams in the southern Cascade Mountains of Washington. In two remote valleys of the Lewis River drainage are 500-year-old trees. These ancient forests are protected from logging as reserves for the northern spotted owl and other species under the Northwest Forest Plan. Downstream of the confluence of Quartz Creek, the Lewis River plunges over four large waterfalls. Curly Creek, another tributary, is the only cataract in Washington with an intact natural stone bridge, and the early formation of a second natural bridge can be observed. Although the Dark Divide is largely composed of black basalt, features such as 5,238-foot (1,596 m) Dark Mountain, Dark Creek and Dark Meadows are actually named for John Dark, a 19th-century gold prospector and speculator. Gallery File: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunrise Peak 3481
Sunrise (or sunup) is the moment when the upper rim of the Sun appears on the horizon in the morning. The term can also refer to the entire process of the solar disk crossing the horizon and its accompanying atmospheric effects. Terminology Although the Sun appears to "rise" from the horizon, it is actually the ''Earth's'' motion that causes the Sun to appear. The illusion of a moving Sun results from Earth observers being in a rotating reference frame; this apparent motion is so convincing that many cultures had mythologies and religions built around the geocentric model, which prevailed until astronomer Nicolaus Copernicus formulated his heliocentric model in the 16th century. Architect Buckminster Fuller proposed the terms "sunsight" and "sunclipse" to better represent the heliocentric model, though the terms have not entered into common language. Astronomically, sunrise occurs for only an instant: the moment at which the upper limb of the Sun appears tangent to the horizon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jumbo Peak (Washington)
Jumbo Peak is a volcanic mountain summit located in the Gifford Pinchot National Forest, in Skamania County of Washington state. It is situated in the Cascade Range, northwest of Mount Adams, east-northeast of Mount St. Helens, and south of Mount Rainier. Its nearest higher neighbor is Sunrise Peak, to the north-northeast. Precipitation runoff from Jumbo Peak drains into tributaries of the Cowlitz River drainage basin. The Juniper Ridge Trail (#261) which skirts this peak provides access to this remote peak. Geology The history of the formation of the Cascade Mountains dates back millions of years ago to the late Eocene Epoch. With the North American Plate overriding the Pacific Plate, episodes of volcanic igneous activity occurred. Mount Adams, a stratovolcano that is southeast of Jumbo Peak, began forming in the Pleistocene.Beckey, Fred W. Cascade Alpine Guide, Climbing and High Routes. Seattle, WA: Mountaineers Books, 2008. Due to Mount St. Helens' proximity to J ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Speyeria Mormonia
''Speyeria mormonia,'' commonly known as the Mormon fritillary, is a North American butterfly belonging to the family Nymphalidae. It is highly diverse, having differentiated into several subspecies which occupy a wide geographic range. ''S. mormonia'' exhibits extreme protandry, which is the emergence of male adults before female adults. This has several consequences on male and female behavior. Habitat specificity is still being investigated, as there are few known environmental predictors, and ''S. mormonia'' appears to be associated with a wide range of habitats. This species is not under threat, and conservation efforts are generally not necessary. Geographic range ''S. mormonia'' is found throughout western North America, with significant populations in both the United States and Canada.Boggs, Carol L., and Charles L. Ross. "The effect of adult food limitation on life history traits in Speyeria mormonia (Lepidoptera: Nymphalidae)." ''Ecology'' 74.2 (1993): 433-441.Marks, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xerophyllum Tenax
''Xerophyllum tenax'' is a North American species of plants in the corn lily family. It is known by several common names, including bear grass, soap grass, quip-quip, and Indian basket grass. Ecology ''Xerophyllum tenax'' has flowers with six sepals and six stamens borne in a terminal raceme. The plant is a perennial herb that can grow to 15–150 cm in height. It grows in bunches with the leaves wrapped around and extending from a small stem at ground level. The leaves are 30–100 cm long and 2–6 mm wide, dull olive green with toothed edges. The slightly fragrant white flowers emerge from a tall stalk that bolts from the base. When the flowers are in bloom they are tightly packed at the tip of the stalk like an upright club. It produces small, tan coloured seeds that will germinate after a cold period of 12 to 16 weeks. The plant is found mostly in western North America from British Columbia south to California and east to Wyoming, in subalpine meadows and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calochortus Subalpinus
''Calochortus subalpinus'', the subalpine mariposa lily, is a North American species of flowering plants in the lily family native to the northwestern United States (States of Washington and Oregon). Description ''Calochortus subalpinus'' is a perennial herb In general use, herbs are a widely distributed and widespread group of plants, excluding vegetables and other plants consumed for macronutrients, with savory or aromatic properties that are used for flavoring and garnishing food, for medicinal ... producing an unbranched stem up to about 30 centimeters tall. Flowers are white to pale lavender with white and orange hairs on the petals. References External links Turner Photographics Pacific Northwest Wildflowers photos of several species in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eriogonum Umbellatum
''Eriogonum umbellatum'' is a species of wild buckwheat known by the common name sulphurflower buckwheat, or simply sulphur flower. It is native to western North America from California to Colorado to central Canada, where it is abundant and found in many habitats, including the sagebrush steppe and alpine areas. It is an extremely variable plant and hard to identify because individuals can look very different from one another. Also, there are many varieties. It may be a perennial herb blooming by summer with stems 10 centimeters tall and two to six clusters of flowers, with a whorl of leaves below the stems, or a sprawling shrub approaching two meters high and wide. The leaves are usually woolly and low on the plant, and the flowers come in many colors from white to bright yellow to purple. It is a popular larval host, feeding the bramble hairstreak, desert green hairstreak, lupine blue, Mormon metalmark, Rocky Mountain dotted blue, Sheridan's hairstreak, Sonoran metalma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia Strawberry
''Fragaria virginiana'', known as Virginia strawberry, wild strawberry, common strawberry, or mountain strawberry, is a North American strawberry that grows across much of the United States and southern Canada. It is one of the two species of Fragaria, wild strawberry that were Hybrid (biology), hybridized to create the modern domesticated garden strawberry (''Fragaria'' × ''ananassa''). Subspecies There are four recognized subspecies: :*''Fragaria virginiana'' subsp. ' (formerly known as ''F. ovalis'') :*''Fragaria virginiana'' subsp. ''grayana'' :*''Fragaria virginiana'' subsp. ''platypetala'' :*''Fragaria virginiana'' subsp. ''virginiana'' Cytology All strawberries have a base haploid count of 7 chromosomes. ''Fragaria virginiana'' is polyploidy, octoploid, having eight sets of these chromosomes for a total of 56. These eight genomes pair as four distinct sets, of two different types, with little or no pairing between sets. The genome composition of the octoploid strawberr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Campanula Scouleri
''Campanula scouleri'' is a species of bellflower known by the common names pale bellflower and Scouler's harebell. It is native to the mountains of western North America from northern California to Alaska. Description It is a rhizomatous perennial herb producing an erect or leaning stem 20 to 30 centimeters long. The leaves are thin to leathery, lance-shaped to round, and generally toothed, measuring 1 to 6 centimeters long and borne on short winged petioles. The pale blue bell-shaped flower has a strongly reflexed corolla with lobes curling back and sometimes almost touching. The style Style is a manner of doing or presenting things and may refer to: * Architectural style, the features that make a building or structure historically identifiable * Design, the process of creating something * Fashion, a prevailing mode of clothing ... protrudes far from the center of the flower; it is blue in color and up to 1.5 centimeters long. References External links * *Jepson Manual ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Rainier
Mount Rainier (), indigenously known as Tahoma, Tacoma, Tacobet, or təqʷubəʔ, is a large active stratovolcano in the Cascade Range of the Pacific Northwest, located in Mount Rainier National Park about south-southeast of Seattle. With a summit elevation of , it is the highest mountain in the U.S. state of Washington and the Cascade Range, the most topographically prominent mountain in the contiguous United States, and the tallest in the Cascade Volcanic Arc. Due to its high probability of eruption in the near future, Mount Rainier is considered one of the most dangerous volcanoes in the world, and it is on the Decade Volcano list. The large amount of glacial ice means that Mount Rainier could produce massive lahars that could threaten the entire Puyallup River valley. According to the United States Geological Survey, "about 80,000 people and their homes are at risk in Mount Rainier's lahar-hazard zones." Between 1950 and 2018, 439,460 people climbed Mount Rainier. Appro ... [...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] |
Washington (state)
Washington (), officially the State of Washington, is a state in the Pacific Northwest region of the Western United States. Named for George Washington—the first U.S. president—the state was formed from the western part of the Washington Territory, which was ceded by the British Empire in 1846, by the Oregon Treaty in the settlement of the Oregon boundary dispute. The state is bordered on the west by the Pacific Ocean, Oregon to the south, Idaho to the east, and the Canadian province of British Columbia to the north. It was admitted to the Union as the 42nd state in 1889. Olympia is the state capital; the state's largest city is Seattle. Washington is often referred to as Washington state to distinguish it from the nation's capital, Washington, D.C. Washington is the 18th-largest state, with an area of , and the 13th-most populous state, with more than 7.7 million people. The majority of Washington's residents live in the Seattle metropolitan area, the center of trans ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural Bridge
A natural arch, natural bridge, or (less commonly) rock arch is a natural landform where an arch has formed with an opening underneath. Natural arches commonly form where inland cliffs, coastal cliffs, fins or stacks are subject to erosion from the sea, rivers or weathering ( subaerial processes). Most natural arches are formed from narrow fins and sea stacks composed of sandstone or limestone with steep, often vertical, cliff faces. The formations become narrower due to erosion over geologic time scales. The softer rock stratum erodes away creating rock shelters, or alcoves, on opposite sides of the formation beneath the relatively harder stratum, or caprock, above it. The alcoves erode further into the formation eventually meeting underneath the harder caprock layer, thus creating an arch. The erosional processes exploit weaknesses in the softer rock layers making cracks larger and removing material more quickly than the caprock; however, the caprock itself continues to erod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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