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Bert Loper
Albert A. "Bert" Loper (July 31, 1869 – July 8, 1949) was a pioneer of the sport of whitewater river-running in the American Southwest, particularly the Colorado River and its tributaries. He, along with many of the noted boatmen of his era, including Charles Russell, Julius Stone, Ellsworth Kolb, and others, were among the first (and last) people to navigate the Colorado River before the construction of Glen Canyon Dam and Navajo Dam. Biography Loper discovered his love of river running while placer mining on the San Juan River. In 1907, using three boats, Loper, along with Charles Russell and Edwin Monett, attempted to boat from Green River, Utah through the Grand Canyon. Loper left Russell and Monett in Glen Canyon on November 1, 1907, to repair a camera and was to rejoin the two other men at Lees Ferry not later than December 1. The two men waited for Loper at the Ferry until December 13, 1907, then proceeded into Marble Canyon without Loper. Russell and Monett completed th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bert Loper C1935
Bert or BERT may refer to: Persons, characters, or animals known as Bert * Bert (name), commonly an abbreviated forename and sometimes a surname *Bert, a character in the poem "Bert the Wombat" by The Wiggles; from their 1992 album Here Comes a Song *Bert (Sesame Street), fictional character on the TV series ''Sesame Street'' *Bert (horse), foaled 1934 * Bert (Mary Poppins), a Cockney chimney sweep in the book series & Disney film ''Mary Poppins'' * Iron Bert (one half of the two yellow diesels 'Arry and Bert), also in ''Thomas and Friends'' Places *Berd, Armenia, also known as Bert *Bert, Allier, a commune in the French of Allier *Bert, West Virginia Electronics & computing * Bit error rate test, a testing method for digital communication circuits * Bit error rate tester, a test equipment used for testing the bit error rate of digital communication circuits * HP Bert, a CPU in certain Hewlett-Packard programmable calculators * BERT (language model) (Bidirectional Encoder Represe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization's work spans the disciplines of biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility. The agency was founded on March 3, 1879. The USGS is a bureau of the United States Department of the Interior; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston, Virginia. The USGS also has major offices near Lakewood, Colorado, at the Denver Federal Center, and Menlo Park, California. The current motto of the USGS, in use since August 1997, is "science for a changing world". The agency's previous slogan, adopted on the occasion of its hundredth an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Grand Canyon River Runners
Early may refer to: History * The beginning or oldest part of a defined historical period, as opposed to middle or late periods, e.g.: ** Early Christianity ** Early modern Europe Places in the United States * Early, Iowa * Early, Texas * Early Branch, a stream in Missouri * Early County, Georgia Other uses * ''Early'' (Scritti Politti album), 2005 * ''Early'' (A Certain Ratio album), 2002 * Early (name) * Early effect, an effect in transistor physics * Early Records, a record label * the early part of the morning Morning is the period from sunrise to noon. There are no exact times for when morning begins (also true of evening and night) because it can vary according to one's lifestyle and the hours of daylight at each time of year. However, morning stric ... See also * Earley (other) {{disambiguation, geo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norman Nevills
Norman D. Nevills (April 9, 1908 – September 19, 1949) was a pioneer of commercial river-running in the American Southwest, particularly the Colorado River through the Grand Canyon. He led trips including Dr. Elzada Clover and Lois Jotter, the first two women to successfully float the Grand Canyon (which occurred in 1938), and Barry Goldwater. Nevills was the son of William E. and Mae Davies Nevills of California. The elder Nevills left California in 1921 to pursue a career in oil drilling in the San Juan oil fields of southern Utah.Cline Library, Northern Arizona University''Norm and Doris Nevills Collection''Retrieved December 17, 2006.Marston, Otis R., (2014). "From Powell To Power; A Recounting of the First One Hundred River Runners Through the Grand Canyon. Flagstaff, Arizona: Vishnu Temple Press, p. 401 Norman and his mother moved to Mexican Hat, Utah to join his father in 1927 after two years of college at the College of the Pacific in Stockton, California. William E. Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otis R
Otis may refer to: Arts and entertainment Characters * Otis (Superman), in the films ''Superman'' and ''Superman II'' and related DC Comics media ** Otis Graves, in the TV series ''Supergirl'' * Otis (''The Walking Dead''), in the Image Comics series * Otis the Aardvark, on Children's BBC * Otis Campbell, in the TV series ''The Andy Griffith Show'' * Otis Driftwood, in Rob Zombie's ''Firefly'' film series * Otis Flannegan or Ratcatcher, a DC Comics character * Otis Johnson (comics), a Marvel Comics character * Otis Johnson Jr., a Marvel Comics character * Otis, in '' The Adventures of Milo and Otis'' * Otis, in the 2006 film '' Barnyard'' * Otis, in the 1997 film ''Good Burger'' * Otis Blake, in the 2009 film '' Crazy Heart'' * Otis Milburn, in the TV series ''Sex Education'' * Otis Otis, in Heather Brewer's book series '' The Chronicles of Vladimir Tod'' * Otis Owl, in '' Jim Henson's Pajanimals'' Film and television * ''Otis'' (film), a 2008 American comedy horror film * ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uinkaret Volcanic Field
The Uinkaret volcanic field is an area of monogenetic volcanoes in northwestern Arizona, United States, located on the north rim of the Grand Canyon. Lava flows from the Uinkaret volcanic field that have cascaded down into the Grand Canyon, damming the Colorado River, have been used to date the canyon's carving. One of these cascades is today's Lava Falls. Lava Falls Rapid, below Lava Falls on the Colorado River, is "at all water levels, the most severe rapid in Grand Canyon." The Colorado River was dammed by lava flows multiple times from 725,000 to 100,000 years ago. While some believe that these lava dams were stable, lasting up to 20,000 years and forming large reservoirs, others think they failed quickly and catastrophically as massive floods.Fenton, C.R., Poreda, R.J., Nash, B.P., Webb, R.H., and Cerling, T.E., 2004, Geochemical discrimination of five Pleistocene lava-dam outburst-flood deposits, western Grand Canyon, Arizona: The Journal of Geology, v. 112, pp. 91� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Mulholland
William Mulholland (September 11, 1855 – July 22, 1935) was an Irish American self-taught civil engineer who was responsible for building the infrastructure to provide a water supply that allowed Los Angeles to grow into the largest city in California. As the head of a predecessor to the Los Angeles Department of Water and Power, Mulholland designed and supervised the building of the Los Angeles Aqueduct, a system to move water from Owens Valley to the San Fernando Valley. The creation and operation of the aqueduct led to the disputes known as the California Water Wars. In March 1928, Mulholland's career came to an end when the St. Francis Dam failed just over 12 hours after he and his assistant gave it a safety inspection. Early life William Mulholland was born in Belfast, Ireland, part of the United Kingdom. His parents Hugh and Ellen Mulholland were Dubliners and they returned to the city a few years after William's birth. His younger brother, Hugh Jr., was born in 1856. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoover Dam
Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. It was referred to as Hoover Dam after President Herbert Hoover in bills passed by Congress during its construction; it was named Boulder Dam by the Roosevelt administration. The Hoover Dam name was restored by Congress in 1947. Since about 1900, the Black Canyon and nearby Boulder Canyon had been investigated for their potential to support a dam that would control floods, provide irrigation water and produce hydroelectric power. In 1928, Congress authorized the project. The winning bid to build the dam was submitted by a consortium named Six Companies, Inc., which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Canyon Of The Colorado
The Black Canyon of the Colorado is the canyon on the Colorado River where Hoover Dam was built. The canyon is located on the Colorado River at the state line between Nevada and Arizona. The western wall of the gorge is in the El Dorado Mountains, and the eastern wall is in the Black Mountains of Arizona. The canyon formed about 15 million years ago during the Miocene Basin and Range uplift.Black Canyon Wilderness Area Information on Black Canyon and its natural history. Black Canyon gets its name from the black that are found throughout the area. Just south of the Hoover Dam on the Nevada side of the canyon is the Sauna Cave. This cave was drilled by miners ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Needles, California
Needles is a city in San Bernardino County, California, in the Mojave Desert region of Southern California. Situated on the western banks of the Colorado River, Needles is located near the Californian border with Arizona and Nevada. The city is accessible via Interstate 40 and U.S. Route 95. The population was 4,959 at the 2020 census, up from 4,844 at the 2010 census. History Needles was founded in May 1883 during the construction of the Atchison, Topeka and Santa Fe Railway, which originally crossed the Colorado River at Eastbridge, Arizona three miles southeast of modern Needles. Needles was named after "The Needles", a group of pinnacles in the Mohave Mountains on the Arizona side of the river. However, the crossing was a poor site for a bridge, lacking firm banks and a solid bottom. A bridge was actually built, but it was of poor quality. Not only was it a "flimsy looking structure", but it was also an obstacle to navigation on the river. The flooding of the Colorado R ... [...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 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 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 U.S. National Parks, the Colorado River and its tributaries are a vital source of water for 40 million people. An extensive system of dams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marble Canyon
Marble Canyon is the section of the Colorado River canyon in northern Arizona from Lee's Ferry to the confluence with the Little Colorado River, which marks the beginning of the Grand Canyon. Lee's Ferry is a common launching point for river runners starting their journey through Marble Canyon and then onward to the Grand Canyon. Marble Canyon is also well known for the Navajo Bridge, where US Highway 89A crosses the Colorado River. Marble Canyon marks the western boundary of the Navajo Nation. In 1975, the former Marble Canyon National Monument, which followed the Colorado River northeast from the Grand Canyon to Lee's Ferry, was made part of Grand Canyon National Park. The name Marble Canyon is a misnomer because there is no marble there. Although John Wesley Powell knew this when he named the canyon, he thought the polished limestone looked like marble. In his words, "The limestone of the canyon is often polished, and makes a beautiful marble. Sometimes the rocks are of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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