Maps and Directions

The Sweeney Granite Mountains Desert Research Center is located in the eastern Mojave Desert, approximately 85 miles east of Barstow on Interstate 40. Detailed directions and gate combinations will be sent to prospective visitors upon receipt of a completed use application. Please note that the Center lands are not open to the general public without expressed permission of the Center staff – please respect the No Trespassing signs.

Tips to prospective visitors: There are no services at the Research Center. The nearest gas stations are located in Ludlow (35 miles) and Baker (55 miles). The nearest grocery stores are located in Needles, Twentynine Palms, and Barstow – please plan accordingly.