The Oakohay Creek watershed in Smith County, Mississippi, had been proposed as a site for the development of a reservoir. The site has been assessed for hydrogeologic suitability. There were three components to the site assessment. The first component involved examining the hydrologic characteristics of the drainage basin. Discharge and stage were monitored at eight sites, providing data for the development of hydrographs. The second component of the study was based on studying the site?s geology. The geology was studied through field reconnaissance, surface mapping, interpretation of geophysical well log data, and development of cross sections. The third component of the study involved the assessment of water quality within the basin. Samples were taken for analysis by the Mississippi State Chemical Laboratory. The results of the site assessment indicate that the proposed site is not suitable based on the hydrology, geology, and water quality of the study area.