The purpose of this paper is to summarize the mechanical and lithological properties determined from rocks taken from cores drilled at the Rawlins T-2 site. A further objective is to determine the relationships between mechanical and lithological properties of the overburden rocks. Specifically, this report provides the following data on 42 overburden samples: tensile strength and unconfirmed compressive strength determined by the point load test, compressional wave velocity, shear wave velocity, and density.