In August 1969, Equity Oil Company engaged CER Geonuclear Corporation to evaluate the prospects for nuclear stimulation of natural gas production in a portion of the Piceance Basin, Colorado. The study area included a block of about nine townships as shown in Figure 1. In April 1970 a Feasibility Study( 1) was issued for Project Rio Blanco as a result of the work done for Equity Oil Company. The resource evaluation narrowed the study down to a detailed examination of the Fort Union Formation and the Upper portion of the Mesaverde Formation, designated as "Mesaverde 1. " As recommended in the Feasibility Study, two wells, Fawn Creek Government Number 1 and Standard Draw Number 1 were selected for recompletion and testing to obtain more detailed information on the reservoir characteristics. In addition to the testing, several logs were run in the wells. Surface studies of the sand outcrop to determine orientation and extent of sand lenses in the Mesaverde and Fort Union formations were made and seismic surveys were run to determine the location of any geologic discontinuities in the area of interest. This report covers the well testing and recompletion histories on both wells, the evaluation of net gas sand based on the new logs, a report of the outcrop study performed during the summer of 1970, and the seismic survey report from. Seismograph Service Corporation.