[en] Union Carbide Corporation, Nuclear Division (UCC-ND), under contract with the US Department of Energy (DOE), is continuing to conduct its survey of 154 National Topographic Map Series (NTMS) 10 x 20 quadrangles which cover approximately 2,500,000 km2 (1,000,000 mi2) of the central United States. A progress report on quadrangle sampling, analyses, and reporting by the Uranium Resource Evaluation (URE) Project is presented. The results of these analyses are also discussed