Briggs, J.P., 1982, Mineral investigation of the Hells Hole Roadless Area, Greenlee County, Arizona, and Grant County, New Mexico: U.S. Bureau of Mines Mineral Land Assessment Open File Report MLA 137-82, 22 p.
Hells Hole area
Placename Counties
GN
Placename Label
Hells Hole area
Mineral investigation of the Hells Hole Roadless Area, Greenlee County, Arizona, and Grant County, New Mexico
Geology and ore deposits of the Steeple Rock-Twin Peaks area, Grant County, New Mexico
Biggerstaff, B.P., 1974, Geology and ore deposits of the Steeple Rock-Twin Peaks area, Grant County, New Mexico: El Paso, University of Texas, M.S. thesis, 102 p.