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A Cultural Resources Overview of the Colorado Desert Planning Units (1981)
DOCUMENT Full-Text Elizabeth von Till Warren. Robert H. Crabtree. Claude N. Warren. Martha Knack. Richard McCarthy.

The Colorado Desert study area covers approximately 11,000 square miles (28,500 km. sq.) of which over two-thirds is managed by the Bureau of Land Management. The land is divided among the Imperial, Santa Rosa, Orocopia, Twentynine Palms, Bristol/Cadiz, Palen, Turtle Mountain, Whipple Mountain, Big Maria and Picacho planning units, which together will be referred to here as the Colorado Desert planning units. The area is bounded on the north by Interstate 40. Its southern boundary is the...