TY - RPRT TI - Application of heat-flow techniques to geothermal energy exploration, Leach Hot Springs area, Grass Valley, Nevada AU - J.H. Sass AU - J.P. Ziagos AU - H.A. Wollenberg AU - R. J. Munroe AU - D. E. di Somma AU - A.H. Lachenbruch PY - 1977 DO - 10.3133/ofr77762 UR - https://pubs.usgs.gov/publication/ofr77762 ID - ofr77762 ER -