Pilot Knob (Imperial County, California)

Coordinates: 32°43′54″N 114°45′00″W / 32.731601906°N 114.7499458°W / 32.731601906; -114.7499458
Source: Wikipedia, the free encyclopedia.
For other uses, see Pilot Knob (disambiguation).
Pilot Knob
All American Canal to the El Centro agriculture region.)
Highest point
Elevation876 ft (267 m) NAVD 88[1]
Coordinates32°43′54″N 114°45′00″W / 32.731601906°N 114.7499458°W / 32.731601906; -114.7499458[1]
Geography
Pilot Knob is located in California
Pilot Knob
Pilot Knob
Pilot Knob is located in Arizona
Pilot Knob
Pilot Knob
Pilot Knob (Arizona)
Topo mapUSGS Yuma West
Geology
Mountain typeVolcanic plug

Pilot Knob (also, Avie Quah-la-Altwa, Ha-bee-co-la-la, and San Pablo) is a peak in Imperial County, California.[2] Pilot Knob is located 8 miles (13 km) southeast of Ogilby,[3] It rises to an elevation of 876 feet (267 m).[1] Pilot Knob is a rocky landform, geologically a Volcanic plug, west of Yuma, Arizona–Winterhaven, California; it is connected to the Cargo Muchacho Mountains, the central portion of the mountains being about 7 miles (11 km) north. Pilot Knob was named for its prominence as a landmark for riverboat traffic in the 19th-20th centuries on the Colorado River which borders Winterhaven–Yuma. Pilot Knob is an Area of Critical Environmental Concern administered by the Bureau of Land Management.

Pilot Knob description

Separated from the center of the

volcanic landform is at the base of alluvial fans. Pilot Knob has a height of 897 feet (273 m), and the entire mountain block is about 2 x 2 mi. The mountain has a rock quarry
on its north side, visible from Interstate 8.

Access to Pilot Knob

Pilot Knob is accessed from

All American Canal
is cut from the south border of Pilot Knob, and can be seen in aerial views traversing the Algodones Dunes to the west.

The Bureau of Land Management administers the Pilot Knob Long Term Visitor Area campground at the base of Pilot Knob.[4]

History

When

California Gold Rush, Pilot Knob was the landmark on the Southern Emigrant Trail for what was called Emigrant Crossing, the center crossing of three major crossings of the Colorado River in the vicinity of what is now Yuma, Arizona.[5] The Butterfield Overland Mail
located its Pilot Knob Station, near the river and the Knob in 1858.

The Alamo Canal intake was placed at Pilot Knob due to the availability of a solid rock foundation for the head gate.[6]

KIVA (TV) Yuma, Arizona transmitted from Pilot Knob from 1953 to 1970.

References

Wikimedia Commons has media related to Pilot Knob (Imperial County, California).
  1. ^ a b c "West Pilot". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved 2009-08-16.
  2. ^ "Pilot Knob". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved 2009-08-16.
  3. ^
    ISBN 1-884995-14-4
    .
  4. ^ "Pilot Knob Long Term Visitor Area | Bureau of Land Management".
  5. ^ Janet L. Hargett, Pioneering At Yuma Crossing: The Business Career of L. J. F. Jaeger, 1850-1887, Arizona And The West, Vol. 25, No. 4 (Winter, 1983), p. 334 (map)
  6. ISBN 978-1-113-10178-5
    . Retrieved 26 August 2010.
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