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Elzada Clover
Elzada Clover (1897–1980) was an American botanist who was the first to catalog plant life in the Grand Canyon on the Colorado River. She and Lois Jotter became the first two women to raft the entire length of the Grand Canyon. Early life and education Elzada Urseba Clover was born in Auburn, Nebraska in 1897, the seventh of nine children of Maynard French Clover and Sarah Gates Clover. She had six sisters (Alice, Mabel, Bessie, Vida, Cora, and Maud) and two brothers (Maynard and Verne). She grew up on her father's farm and attended high school in the nearby town of Peru. Her mother died in 1913 and her father remarried around 1925 and moved to Texas, where he set up as a farmer near Alamo. Her interest in cacti began after this move. Clover began her career as a public school teacher in 1919, working first in Nebraska and later in Texas; she was the principal of the South Mission School in Mission in the latter state. This was an elementary school for Mexican American childre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auburn, Nebraska
Auburn is a city in Nemaha County, Nebraska, United States, and its county seat. The population was 3,470 at the 2020 census. History Auburn is an incorporation of two towns. Calvert and Sheridan combined to form Auburn in 1882, in part to have the voting power to wrestle the county seat away from Brownville, Nebraska, a village located ten miles east. The incorporation was successful, and in 1883, Auburn was named the county seat. The city is named after Auburn, New York. The only person to be elected to the United States Congress as a member of the Prohibitionist Party, Charles Hiram Randall, was born in Auburn on July 23, 1865. From 1910 to 1913, Auburn was home to the Auburn Athletics, a Class C level minor league baseball team. The Auburn Athletics played as members of the Missouri-Iowa-Nebraska-Kansas League for the duration of the league. The Auburn Athletics played home games at the Legion Memorial Park. Still in use today, Legion Memorial Park is designated as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Juan River (Colorado River)
The San Juan River is a major tributary of the Colorado River in the Southwestern United States, providing the chief drainage for the Four Corners region of Colorado, New Mexico, Utah, and Arizona. Originating as snowmelt in the San Juan Mountains (part of the Rocky Mountains) of Colorado, it flows U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed March 21, 2011, through the deserts of northern New Mexico and southeastern Utah to join the Colorado River at Glen Canyon. The river drains a high, arid region of the Colorado Plateau. Along its length, it is often the only significant source of fresh water for many miles. The San Juan is also one of the muddiest rivers in North America, carrying an average of 25 million US tons (22.6 million t) of silt and sediment each year. Historically, the San Juan formed the border between the territory of the Navajo in the south and the Ute in the north. Although Europeans explored th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glen Canyon Dam
Glen Canyon Dam is a concrete arch-gravity dam on the Colorado River in northern Arizona, United States, near the town of Page, Arizona, Page. The high dam was built by the U.S. Bureau of Reclamation (USBR) from 1956 to 1966 and forms Lake Powell, one of the largest man-made reservoirs in the U.S. with a capacity of more than . The dam is named for Glen Canyon, a series of deep sandstone canyon, gorges now flooded by the reservoir; Lake Powell is named for John Wesley Powell, who in 1869 led the first expedition to traverse the Colorado River's Grand Canyon by boat. A dam in Glen Canyon was studied as early as 1924, but these plans were initially dropped in favor of the Hoover Dam (completed in 1936) which was located in the Black Canyon of the Colorado, Black Canyon. By the 1950s, due to rapid population growth in the seven U.S. and two Mexico, Mexican states comprising the Colorado River Basin, the Bureau of Reclamation deemed the construction of additional reservoirs necessar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riparian Zone
A riparian zone or riparian area is the interface between land and a river or stream. Riparian is also the proper nomenclature for one of the terrestrial biomes of the Earth. Plant habitats and communities along the river margins and banks are called riparian vegetation, characterized by hydrophilic plants. Riparian zones are important in ecology, environmental resource management, and civil engineering because of their role in soil conservation, their habitat biodiversity, and the influence they have on fauna and aquatic ecosystems, including grasslands, woodlands, wetlands, or even non-vegetative areas. In some regions, the terms riparian woodland, riparian forest, riparian buffer zone, riparian corridor, and riparian strip are used to characterize a riparian zone. The word ''riparian'' is derived from Latin '' ripa'', meaning " river bank". Characteristics Riparian zones may be natural or engineered for soil stabilization or restoration. These zones are important natural b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Snakeweed
''Gutierrezia'' is a genus of flowering plants in the family Asteraceae, native to western North America and western South America. Plants of this genus are known generally as snakeweeds or matchweeds. Some species have been called greasewood. They are annual or perennial plants or subshrubs with yellow or white flowers. These plants contain chemical compounds which can be toxic to livestock and some are considered weeds. ; Species * '' Gutierrezia alamanii'' - Chihuahua * '' Gutierrezia argyrocarpa'' - Hidalgo * '' Gutierrezia arizonica'' – Arizona snakeweed - Arizona, Sonora * '' Gutierrezia baccharoides'' - Chile, Argentina * '' Gutierrezia californica'' – San Joaquin snakeweed - California, Baja California, Arizona ( Yavapai Co) * '' Gutierrezia conoidea'' - Chihuahua, Durango, Jalisco, Zacatecas * '' Gutierrezia dracunculoides'' - USA (from Arizona to Nebraska + Tennessee) * '' Gutierrezia dunalii'' - Morelos, México State * '' Gutierrezia elegans'' - Lone Mesa snak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tamarisk
The genus ''Tamarix'' (tamarisk, salt cedar, taray) is composed of about 50–60 species of flowering plants in the family Tamaricaceae, native to drier areas of Eurasia and Africa. The generic name originated in Latin and may refer to the Tamaris River in Hispania Tarraconensis (Spain). Description They are evergreen or deciduous shrubs or trees growing to in height and forming dense thickets. The largest, ''Tamarix aphylla'', is an evergreen tree that can grow to tall. They usually grow on saline soils, tolerating up to 15,000 ppm soluble salt, and can also tolerate alkaline conditions. Tamarisks are characterized by slender branches and grey-green foliage. The bark of young branches is smooth and reddish brown. As the plants age, the bark becomes gray-brown, ridged and furrowed. The leaves are scale-like, almost like that of junipers, 1–2 mm (1/20" to 1/10") long, and overlap each other along the stem. They are often encrusted with salt secretions. The pink to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emery Kolb
The Kolb Studio is a historic structure situated on the edge of the South Rim of the Grand Canyon in Grand Canyon Village within Grand Canyon National Park in Arizona. It was operated from 1904 until 1976 as the photographic studio of brothers Ellsworth and Emery Kolb. History In 1902, Emery C. Kolb (1881–1976) and Ellsworth L. Kolb (1876–1960) first arrived at the south rim of the Grand Canyon. In 1911, they successfully navigated the Colorado River, filming their journey. Built between from 1904 to 1926, the building which they constructed was both a family home and photographic studio for the pioneering Kolb brothers. The building has evolved through two major additions and countless minor changes during its century of existence at Grand Canyon. After the death of Emery Kolb in 1976, the National Park Service acquired the historic studio. During the 1990s, the Grand Canyon Association renovated the building and converted it to its current state. The Grand Canyon Ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geological Survey
A geological survey is the systematic investigation of the geology beneath a given piece of ground for the purpose of creating a geological map or model. Geological surveying employs techniques from the traditional walk-over survey, studying outcrops and landforms, to intrusive methods, such as hand augering and machine-driven boreholes, to the use of geophysical techniques and remote sensing methods, such as aerial photography and satellite imagery. Such surveys may be undertaken by state, province, or national geological survey organizations to maintain the geological inventory and advance the knowledge of geosciences for the benefit of the nation. A geological survey map typically superimposes the surveyed extent and boundaries of geological units on a topographic map, together with information at points (such as measurements of orientation of bedding planes) and lines (such as the intersection of faults with the land surface). The maps and reports created by geological surv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Mead
Lake Mead is a reservoir formed by the Hoover Dam on the Colorado River in the Southwestern United States. It is located in the states of Nevada and Arizona, east of Las Vegas. It is the largest reservoir in the US in terms of water capacity. Lake Mead provides water to the states of Arizona, California, and Nevada as well as some of Mexico, providing sustenance to nearly 20 million people and large areas of farmland. At maximum capacity, Lake Mead is long, at its greatest depth, has a surface elevation of above sea level, has a surface area of , and contains 28.23 million acre-feet (32.236 km³) of water. The lake has remained below full capacity since 1983 owing to drought and increased water demand. As of May 31, 2022, Lake Mead held of full capacity at , dropping below the reservoir's previous all-time low of recorded in July 2016. In a draft 2022 Colorado River annual operating plan, released by the U.S. Bureau of Reclamation, a "Shortage Condition" is expected to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cataract Canyon
Cataract Canyon is a canyon of the Colorado River located within Canyonlands National Park and Glen Canyon National Recreation Area in southern Utah. It begins at Colorado's confluence with the Green River, and its downstream terminus is the confluence with the Dirty Devil River. The lower half of the canyon is submerged beneath Lake Powell when the lake is at its normal high water elevation of . Geology Cataract Canyon is cut by the Colorado River into the Colorado Plateau, a vast continental uplift comprising much of the American Southwest. Until approximately 80 million years ago, the Colorado Plateau was near sea level. Over millions of years, a series of inland oceans transgressed onto and regressed from the region, resulting in a series of horizontally deposited rock layers. Approximately 70 to 80 million years ago, a series of mountain-building events called the Laramide orogeny uplifted the entire region. The Colorado River subsequently cut through the rock layers, expo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green River, Utah
Green River is a city in Emery County, Utah. The population was 847 at the 2020 census. History The city of Green River is located in ancestral Ute lands, in the home locale of the Seuvarits/Sheberetch band of Ute people. The Old Spanish Trail trade route passed across the Green River in the area of modern Green River from 1829 into the 1850s. John Wesley Powell embarked on the first of two voyages down the Green River in May 1869 and floated the river to its confluence with the Colorado and beyond. Powell left a detailed account of the river and the surrounding landscape and prepared the first thorough maps of the river basin. Powell left his mark in other ways as well. He and his men named most of the canyons, geographic features, and rapids along the Green River during his two voyages in 1869 and 1871. Powell also paved the way for later generations of explorers and scientists interested in the unique geology of the basin of the Green River. The settlement of the Green Riv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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