This map has been prepared by the U.S. Geological Survey as part of a hydrologic investigation of the southeastern Uinta Basin in cooperation with the Utah State Engineer and the U.S. Bureau of Land Management. The map defines the extent of dominant types of vegetation within the study area prior to proposed oil-shale development. The information presented will be helpful for estimating runoff and ground-water recharge and for identifying large scale vegetation modifications which could result from environmental changes.