Great Basin Divide

Table index

The sortable table temporarily uses alphanumeric indices for 5 geographic segments of the Great Basin Divide:

  1. northwest: east-central CA northward to the northwest corner (OR)
  2. north: OR eastward to northeast corner (WY)
  3. east: WY southward to NV
  4. southeast: NV southward to the southernmost point in Baja California
  5. southwest: northward along the California coastal watersheds that drain to the Pacific Ocean.

USGS subregions (watersheds) are temporarily listed until the corresponding local physiographic regions (e.g., a mountain or range wikiarticle) have been listed. For example, the listing is for a triple point which is in an unidentified mountain and/or subrange of the Sierra Nevada mountain range.

The Great Basin Divide' is a continental divide of the western United States that demarcates the Great Basin from the watershed of the Pacific Ocean. The water divide is the perimeter of the largest set of contiguous endorheic watersheds in North America, including 11 entire USGS watershed subregions.[1] For example, the San Joaquin subregion that drains to the Pacific is adjacent to the Great Basin's northern Mojave-Mono Lake subregion and ', and their triple point is on the Great Basin Divide.

In addition to subregion triple points, the table below lists crossings of various boundaries, including those of states, United States physiographic regions (e.g., the smaller Great Basin section), Interstate Highways, and aqueducts.

Notable Great Basin Divide Points (clockwise beginning in east-central California)
ST: County range or watershed elevation & coordinates triple watershed point or other feature
1a CA Mojave-Mono Lake subregion 37°27′N 118°42′W / 37.45°N 118.7°W / 37.45; -118.7 triple point: San Joaquin R, Kings R (Middle Fk), & Owens R (Bishop Cr)
1e CA Kings Canyon National Park southernmost point of the Divide on the central Sierra Crest
1g CA Mono Lake watershed triple point: San Joaquin & Sacramento River subregions
1h CA triple point: San Joaquin R & Mojave-Mono L subregion
1k CA: Alpine triple point: Sacramento subregion & central Lahontan subregion
1m CA: Placer Donner mountains crossing (road): Interstate 80 in California
1o CA westernmost point of
1q CA triple point: Sacramento subregion & central Lahontan subregion
1s CA/OR Goose L watershed state line: 42nd parallel north
1u OR

north

Klamath R watershed (exterior) triple point: Sacramento subregion &
2a OR triple point: Klamath & Columbia R watersheds (NW point of Great Basin)
2c OR: Grant Silvies River watershed northernmost watershed of Great Basin
2e OR crossing (physiographic): Harney section & Great Basin section
2g OR triple point: Oregon closed basin subregion & Upper Snake subregion
2i OR/NV state line: 42nd parallel north
2k NV southernmost point of Upper Snake subregion (Owyhee watershed)
2m NV: Elko Jarbridge Mts (Bruneau R headwaters) 2,457 ft (749 m)41°34′42″N 115°24′50″W / 41.57833°N 115.41389°W / 41.57833; -115.41389 crossing (triple physiographic point): Payette, Snake River Plain, & Great Basin sections
2o NV triple point: Upper Snake subregion & Black Rock-Humboldt subregion
2q NV/UT state line: meridian between 115th & 114th
2s UT/ID state line: 42nd parallel north
2u ID Bear River subregion triple point: Curlew Valley watershed & Snake River watershed
2w ID ID: Caribou crossing (triple physiogr'c pt): Snake R plain, Mid Rockies, & Great Basin sections
2x ID: Caribou Columbia River Great Basin Divide 7,260 ft (2,210 m)"USGS Elevation Web Service Query". United States Geological Survey 3908 ft (Columbia River Great Basin Divide)42°41′11″N 111°27′14″W / 42.68639°N 111.45389°W / 42.68639; -111.45389"Query Form For The United States And Its Territories". U.S. Board on Geographic Names


Donner Pass (259475, Placer Co), Donner Summit (276078, Nevada Co), Donner Summit Bridge (259478), Donner Summit Recreation Site (1662521), Donner Summit Ski Area (1662460), Euer Saddle (252113)

ridge
2y ID/WY

east

state line: 111° 3′ W
3a WY: Lincoln Bear River subregion triple point: Columbia (Snake) & Colorado (Green) rivers
3c WY: Lincoln easternmost point of Great Basin
3e WY crossing (road): Interstate 80 in Wyoming
3g WY/UT state line: 41st parallel north
3h UT Highline Trail, Utah crossing
3i UT Uinta Mountains triple point of Bear & Weber Rivers with Colorado (Green) R
3k UT crossing (road): Interstate 70 in Utah near west terminus
3m UT Escalante--Sevier subregion triple point: & Colorado R
3o UT Paunsaugunt Plateau
3q UT/NV

southeast

Escalante watershed state line: meridian between 115th & 114th
4a NV subregion
4b NV Dry Lake Valley watershed "finger" watershed east of Colorado (White) River finger watershed
4d NV White Pine Range crossing (road): U.S. Route 50 in Nevada near Little Antelope Summit
4f NV Grant Range southernmost point of range on the Divide (west of White watershed)
4g NV: Clark Mojave Desert crossing (physiographic): Sonoran Desert & Great Basin sections
4i NV/CA
4k CA Mojave River watershed triple point: northern Mojave-Mono Lake & Colorado River watersheds
4m CA: San Bernardino crossing (road): Interstate 40 in California
4p CA: San Bernardino southern Mojave-Salton Sea subregion triple point: southern Mojave & Colorado R
4t CA: Riverside crossing (road): Interstate 10 in California
4v CA: Imperial All-American Canal crossing: man-made waterway
4w CA/Mexico Baja California crossing (international)
4x Baja CA Laguna Salada watershed triple point: CO R & watershed SE of Salton Sink
4z Baja CA

southwest

triple point: Pacific coast & Colorado R watersheds
5a Baja CA Salton Sea watershed triple point: Pacific coast & Laguna Salada watersheds
5c CA/Mexico crossing (international)
5e CA crossing (physiographic): Lower CA province & LA Ranges section
5g CA San Jacinto R watershed triple point: southern California coastal & Mojave-Salton subregion
5i CA: Riverside Temecula Valley location of Lake Elsinore in northwest
5k CA: Riverside Lake Elsinore 1,256 ft (383 m)33°39′37″N 117°21′12″W / 33.66028°N 117.35333°W / 33.66028; -117.35333 Wasson sill,[2] a natural topographic divide with rare overflows[3]
5m CA Mount San Jacinto State Park crossing (trail): Pacific Crest Trail[4]
5o CA: Riverside Colorado River Aqueduct crossing: man-made waterway
5p CA: Riverside crossing (road): Interstate 10 in California
5q CA Mojave River watershed triple point: southern CA coastal & San Jacinto watersheds
5r CA: San Bernardino crossing (road): Interstate 15 in California
5s CA Los Angeles Aqueduct crossing: man-made waterway
5t CA Tehachapi Pass crossing (trail): Pacific Crest Trail
5u CA: Kern Tulare-Buena Vista drainage triple point: southern CA coastal & Mojave R watersheds
5v CA Upper Gato-Avenal watershed westernmost watershed of Great Basin
5w CA triple point: southern CA & central California coastal watersheds
5x CA Tulare Basin triple point: central CA coastal & San Joaquin River watersheds

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