geothermal data compiled and interpreted by Henry P. Heasler with assistance from B.S. Hinckley ... [et al.] of the Department of Geology and Geophysics, University of Wyoming ; map produced by the National Geophysical Data Center, National Oceanic and Atmospheric Administration for the Geothermal and Hydropower Technologies Division, United States Department of Energy.
[Washington, D.C.] : The Division ; Laramie, Wyo. : Map available at the Wyoming Geological Survey, 1983.