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Unaweep Canyon
Unaweep Canyon is a geologically unique canyon that cuts across the Uncompahgre Plateau, Mesa County, in western Colorado. It is unique because two creeks, East Creek and West Creek, flow out of opposite ends of the canyon, separated by the almost imperceptible Unaweep Divide. State Highway 141 runs inside Unaweep Canyon between Whitewater and Gateway, one segment of the Colorado-designated Unaweep/Tabeguache Scenic Byway. The Unaweep Divide, elevation , is near mile marker 135 on SH 141. Hypotheses of origin There are multiple explanations for the origin of Unaweep Canyon. In the late 19th century, members of the Hayden Survey recognized the oddity of a canyon with two outlets, and suggested it was carved by the ancestral Colorado or Gunnison river. Many others have also suggested it was carved by either the Gunnison or Colorado Rivers, but evidence for gravel deposits characteristic of these rivers was elusive, and the existence of the divide remains difficult to explain. Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mesa County, Colorado
Mesa County is a county located in the U.S. state of Colorado. As of the 2020 census, the population was 155,703. The county seat is Grand Junction. The county was named for the many large mesas in the area, including Grand Mesa. Mesa County comprises the Grand Junction, CO Metropolitan Statistical Area. In 2020 it ranked as the 271st most populous metropolitan area in the United States. It is the only metropolitan area in Colorado not located on the Front Range. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.4%) is water. It is the fourth-largest county by area in Colorado. Adjacent counties * Garfield County – north * Pitkin County – east * Gunnison County – east * Delta County – southeast * Montrose County – south * Grand County, Utah – west Major highways * Interstate 70 * * * U.S. Highway 6 * U.S. Highway 50 * State Highway 65 * State Highway 139 * State Highway 141 * State Highway 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uncompahgre Plateau
The Uncompahgre Plateau in western Colorado is a distinctive large uplift part of the Colorado Plateau. is a Ute word that describes the water: "Dirty Water" or "Rocks that make Water Red". The plateau, with an average elevation of , rises from the Colorado River to Horsefly Peak . It continues on about southeast to the northwest margin of the San Juan Mountains. Its boundaries are the San Miguel and Dolores Rivers to the west, the Colorado River to the north and the Gunnison and Uncompahgre Rivers on the eastern side. Large canyons such as Big Red, Tabeguache, Spring Creek, Roubideau, Escalante, Big Dominquez, and Unaweep are separated by generally flat mesas. The Plateau watersheds include four tributaries of the Colorado River: Dolores River, Gunnison River, San Miguel River and Uncompahgre River. The Uncompahgre Plateau includes about in five counties: Delta, Mesa, Montrose, Ouray, and San Miguel. The plateau is under the management of: * United States Fores ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado
Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains. Colorado is the eighth most extensive and 21st most populous U.S. state. The 2020 United States census enumerated the population of Colorado at 5,773,714, an increase of 14.80% since the 2010 United States census. The region has been inhabited by Native Americans and their ancestors for at least 13,500 years and possibly much longer. The eastern edge of the Rocky Mountains was a major migration route for early peoples who spread throughout the Americas. "''Colorado''" is the Spanish adjective meaning "ruddy", the color of the Fountain Formation outcroppings found up and down the Front Range of the Rocky Mountains. The Territory of Colorado was organized on February 28, 1861, and on August 1, 1876, U.S. President Ulyss ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado State Highway 141
State Highway 141 (SH 141) is a long state highway in far western Colorado, United States. Though nominally oriented north–south, SH 141 winds around a considerable amount due to the rugged terrain and ultimately forms a giant S shape. SH 141's southern terminus is at U.S. Route 491 (US 491) near Dove Creek, and the northern terminus is at Interstate 70 Business (I-70 Bus.) in Grand Junction. SH 141 is the longest three-digit state highway in Colorado. Route description Beginning west of Dove Creek, the highway runs north, then swings east to drop into a canyon and cross the Dolores River at Slick Rock. SH 141 follows the Dolores for a short while, then continues east through Gypsum Gap, then north through Broad Canyon. At a junction with SH 145 the highway turns west through Naturita, then northwest following the San Miguel River to the Dolores River. It continues a winding path northwest along the Dolores to Gateway. There it turns northeast ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whitewater, Colorado
Whitewater is an unincorporated community with a U.S. Post Office in Mesa County, Colorado, United States, just south of Grand Junction. The Whitewater Post Office has the ZIP Code 81527. It is located on the banks of the Gunnison River near the confluences with Whitewater Creek and Kannah Creek to the south. Historic places Near Whitewater are the following historic places: * Bloomfield Site is a prehistoric archaeological site from 8999 BC - AD 1799, starting with the Archaic culture. It was added to the National Register of Historic Places in 1983. * Land’s End Aboriginal Site, an archaeological site from the Archaic prehistoric period, is listed on the Colorado State Register of Historic Properties. * Land's End Observatory is a historic ranger observatory, off of the Grand Mesa Scenic and Historic Byway, with a panoramic view of western Colorado and eastern Utah. It is listed on the National Register of Historic Places. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gateway, Colorado
Gateway is an unincorporated community and a U.S. Post Office located in Mesa County, Colorado, United States. Description The Gateway Post Office has the ZIP Code 81522. A post office called Gateway has been in operation since 1903. The community most likely was named for a rock formation near the original town site. Geography Gateway is located at (38.677661,-108.980264). Climate According to the Köppen Climate Classification system, Gateway has a cold semi-arid climate, abbreviated "BSk" on climate maps. The hottest temperature recorded in Gateway was on August 12, 1958, July 12, 1959, July 13, 1971, and July 9–10, 2021, while the coldest temperature recorded was on January 13, 1963. Arts and culture Gateway is home to the Gateway Canyons Resort and Auto Museum. Established by Discovery Channel founder John S. Hendricks, this resort claims to blend in naturally to the landscape that surrounds it. Tourists may enjoy kayaking, off-road tours, guided fly-fis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hayden Survey
Ferdinand Vandeveer Hayden (September 7, 1829 – December 22, 1887) was an American geologist noted for his pioneering surveying expeditions of the Rocky Mountains in the late 19th century. He was also a physician who served with the Union Army during the Civil War. Early life Ferdinand Hayden was born in Westfield, Massachusetts. As a young boy he was fascinated with all nature and wildlife, which led him into the field of medicine. He worked in Cleveland under Jared Potter Kirtland and thereafter in Albany, NY, where he worked under James Hall, of the ''Geological Survey of New York''. He graduated from Oberlin College in 1850 and from the Albany Medical College in 1853, where he attracted the notice of Professor James Hall, state geologist of New York, through whose influence he was induced to join in an exploration of Nebraska Territory, with Fielding B. Meek to study geology and collect fossils. Hall sent him on his first geological venture in the summer of 1853. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado River
The Colorado River ( es, Río Colorado) is one of the principal rivers (along with the Rio Grande) in the Southwestern United States and northern Mexico. The river drains an expansive, arid drainage basin, watershed that encompasses parts of seven U.S. states and two Mexican states. The name Colorado derives from the Spanish language for "colored reddish" due to its heavy silt load. Starting in the central Rocky Mountains of Colorado, it flows generally southwest across the Colorado Plateau and through the Grand Canyon before reaching Lake Mead on the Arizona–Nevada border, where it turns south toward the Mexico–United States border, international border. After entering Mexico, the Colorado approaches the mostly dry Colorado River Delta at the tip of the Gulf of California between Baja California and Sonora. Known for its dramatic canyons, whitewater rapids, and eleven National parks of the United States, U.S. National Parks, the Colorado River and its tributaries are a v ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gunnison River
The Gunnison River is located in western Colorado, United States and is one of the largest tributaries of the Colorado River. Description The river flows east to west and has a drainage area of according to the USGS. The drainage basin of the Gunnison collects water from different habitats, such as forests and alpine meadows, located the along Continental Divide. As the river flows westward, it carves through the San Juan Mountains. It flows into the Colorado River at Grand Junction. The Gunnison River Basin is popular for recreational activities such as fishing, rafting, boating, camping, hiking, and rock climbing. Contamination of the Gunnison River with selenium and mercury results from irrigation of high-selenium soils derived from the Mancos Shale and from mineral mining. The region surrounding the Gunnison River is part of the Colorado Mineral Belt. Contamination of the Gunnison River with selenium and mercury is a conservation concern for the bonytail chub, Colora ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Plio-Pleistocene
The Plio-Pleistocene is an informally described geological pseudo-period, which begins about 5 million years ago (Mya) and, drawing forward, combines the time ranges of the formally defined Pliocene and Pleistocene epochs—marking from about 5 Mya to about 12 kya. Nominally, the Holocene epoch—the last 12 thousand years—would be excluded, but most Earth scientists would probably treat the current times as incorporated into the term "Plio-Pleistocene"; see below. In the contexts of archaeology, paleontology, and paleoanthropology, the Plio-Pleistocene is a very useful period to which scientists may assign the long and continuous run in East Africa of datable sedimentary layers and their contents (e.g. the Bouri Formation). These contents collectively present a focused view of the continuous evolution of the region's large vertebrates, especially the evolution of some African apes (hominids) to the earliest hominins; and then the development of the early humans and thei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( , often referred to as the ''Ice age'') is the geological Epoch (geology), epoch that lasted from about 2,580,000 to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek grc, label=none, πλεῖστος, pleīstos, most and grc, label=none, καινός, kainós (latinized as ), 'new'. At the end of the preceding Pliocene, the previously isolated North and South American continents were joined by the Isthmus of Panama, causing Great American Interchang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
