This geologic map of the Wabuska Geothermal Area outlines the locations of quaternary deposits, late tertiary volcanic and sedimentary rocks, late tertiary intrusive rocks and veins, Oligocene ash-flow tuffs and sedimentary rocks, and Triassic sedimentary rocks. Suggested citation: Hinz, N. H., Ramelli, A. R., and Faults, J. E., 2013, Preliminary geologic map of the Wabuska quadrangle, Lyon County, Nevada: Nevada Bureau of Mines and Geology Open-File Report 13-8, scale 1:24,000.