When did the river on which the Grand Valley Diversion Dam is located start forming the Grand Canyon?
about 5 to 6 million years ago
Title: Percha Diversion Dam
Passage: The Percha Diversion Dam is a structure built in 1918 on the Rio Grande in New Mexico, United States. It diverts water from the Rio Grande into the Rincon Valley Main Canal, an irrigation canal.
Title: Marimbondo Dam
Passage: The Marimbondo Dam is an embankment dam on the Grande River near Fronteira in Minas Gerais, Brazil. The dam serves an associated hydroelectric power plant with a installed capacity.
Title: Hydroelectric power in the United States
Passage: Hydroelectric stations exist in at least 34 US states. The largest concentration of hydroelectric generation in the US is in the Columbia River basin, which in 2012 was the source of 44% of the nation's hydroelectricity. Hydroelectricity projects such as Hoover Dam, Grand Coulee Dam, and the Tennessee Valley Authority have become iconic large construction projects.
Title: Grand Valley Diversion Dam
Passage: The Grand Valley Diversion Dam is a diversion dam in the De Beque Canyon of the Colorado River, about northeast of Grand Junction, Colorado in the United States. It is a high, long concrete roller dam with six gates, which were the first and largest of their kind to be installed in the United States.
Title: Byers Canyon
Passage: Byers Canyon is a short gorge on the upper Colorado River in Grand County, Colorado in the United States. The canyon is approximately 8 miles (13 km) long and is located in the headwaters region of the Colorado between Hot Sulphur Springs and Kremmling. U.S. Highway 40 passes through the canyon between Hot Sulphur Springs and Kremmling. The Union Pacific Railroad's Moffat Route also travels through the short canyon.
Title: National Register of Historic Places listings in Grand Canyon National Park
Passage: This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Grand Canyon National Park, Arizona, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a Google map.
Title: Grand Canyon
Passage: Nearly two billion years of Earth's geological history have been exposed as the Colorado River and its tributaries cut their channels through layer after layer of rock while the Colorado Plateau was uplifted. While some aspects about the history of incision of the canyon are debated by geologists, several recent studies support the hypothesis that the Colorado River established its course through the area about 5 to 6 million years ago. Since that time, the Colorado River has driven the down - cutting of the tributaries and retreat of the cliffs, simultaneously deepening and widening the canyon.
Grand Canyon Grand Valley Diversion Dam