The Desert Biosphere Reserve and Experimental Range is a biosphere reserve and experimental range in western Millard County, Utah, United States, that is listed as a historic district on the National Register of Historic Places.

The range is maintained by the U.S. Forest Service's Rocky Mountain Research Station.

[3] It is located in the northwest of Pine Valley, a valley section in southwest Millard County, about 40 miles (64 km) west of Milford; the north section of the reserve covers the southern half of the Tunnel Springs Mountains.

Vegetation is typical of the Great Basin shrub steppe, with shadscale saltbush (Atriplex confertifolia) and sagebrush (Artemisia spp.)

The reserve also includes areas of Single-leaf Pinyon (Pinus monophylla) juniper woodland and pasture land.