U.S. Bureau of Land Management (BLM)

• 49.7% of the land is federally owned and managed by the Yuma Field Office of the Bureau of Land Management.
• This basin includes the 30,000 acre Trigo Mountains Wilderness, the 19,000 acre Gibraltar Mountain Wilderness and the 15,000 acre East Cactus Plain Wilderness.  (see Figure 7.0-12)
• Land uses include grazing, resource conservation and recreation.

U.S. Military

• 19.5% of the land is federally owned and managed by the U.S. Military as the Yuma Proving Ground.
• Primary land use is military activity.

Indian Reservation

• 16.4% of the land is under tribal ownership as the Colorado River Indian Tribes Reservation.
• Land uses include domestic, commercial and agriculture.

Wildlife Refuge

• 9.3% of the land is federally owned and managed by the U.S. Fish and Wildlife Service as the Kofa National Wildlife Refuge (NWR), Cibola NWR and the Imperial NWR
• Land uses include resource conservation, wildlife protection and recreation.

State Trust Land

• 3.7% of the land is held in trust for the public schools under the State Trust Land system.
• Primary land use is agriculture.

Private

• 1.3% of the land is private.
• Small parcels of private land are located in the vicinity of Highway 95, north of Cibola, and at Parker and Cienega Springs
• Land uses include domestic, commercial and agriculture.

Other (Game and Fish, County and Bureau of Reclamation Lands)

• 0.1% of the land is federally owned and managed by the U.S. Bureau of Reclamation (USBOR)
• USBOR lands are located north of Cibola along the Colorado River.
• Primary land use is unknown.

Figure 7.6-2 Parker Basin Land Ownership

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References and Supplemental Reading for the Parker Basin