	*(1915) Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona. Bulletin* Vol. 582. US Geological Survey doi:10.3133/b582**	Report (volume)
	582 MINERAL DEPOSITS OF THE SANTA RITA AND PATAGONIA MOUNTAINS ARIZONA BY FRANK C. SCHRADER WITH CONTRIBUTIONS...________________ Location and means of approach ____________ Settlements and means of communication-__________________...___ 15 16 16 17 Climate and vegetation. 18 _._ History of mining and present conditions___________________...______-_____________ Mountains _ __________ _ Santa Rita and Patagonia ranges ______ _ Empire Mountains ________________________...________________________ San Cayetano Mountains . ______ __ __ Canelo Hills____________________________ Valleys
	*(1990) Preliminary mineral resource assessment of the Tucson and Nogales 1 degree x 2 degrees quadrangles, Arizona. Open-File Report* Vol. 1990 (90-276) US Geological Survey doi:10.3133/ofr90276**	Report (issue)
	RESOURCE ASSESSMENT OF THE TUCSON AND NOGALES 1° by 2° QUADRANGLES, ARIZONA Edited by Jocelyn A. Peterson...Open-File Report 90-276 This report is preliminary and has not been reviewed for conformity with U.S. Geological... or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government...Peterson, Joel R. Bergquist, Stephen J. Reynolds, and Susan S. Page-Nedell.............;.................................................. Data coverage and map compilation.................................
	*(1917) Useful minerals of the United States. Bulletin* Vol. 624. US Geological Survey doi:10.3133/b624**	Report (volume)
	STATES*-^ COMPILED BY FRANK C. SCHRADER, RALPH W. STONE AND* SAMUEL SANFORD A revision of Bulletin 585 WASHINGTON........................................... 10 Arizona......................................................................................... 102 District of Columbia .......................................................................... Glossary and index.............................................. Compiled by FRANK C. SCHRADER, EALPH W. STONE, and SAMUEL SANFORD. INTRODUCTION. The volumes of the
	*Houser, B.B. - Ed.* (1992, October) Historic mining camps and Jurassic calderas [Arizona], with a paper on the Greaterville placer district by L.J. Cox. Guidebook. Arizona Geological Society**	Report (issue)
	Historic Mining Camps and Jurassic Calderas By BRENDA HOUSER With a paper on the GREATERVILLE PLACER...PLACER DISTRICT By LESLIE Cox ARIZONA GEOLOGICAL SOCIETY FALL FIELD TRIP, 1992 Arizona Geological Society...AZ 8 571 7 Historic Mining Camps and Jurassic Calderas, Southeastern Arizona! By BRENDA HOUSER With...GREATERVILLE PLACER DISTRICT By LESLIE Cox ARIZONA GEOLOGICAL SOCIETY FALL FIELD TRIP, 1992 Arizona Geological...40952 Tucson, AZ 85717 IThis report is preliminary and has not been reviewed for conformity with U.S. Geological
	(1952) Annotated bibliography and index map of sulfur and pyrites deposits in the United States and Alaska (including references to July 1, 1951) Circular 157. US Geological Survey doi:10.3133/cir157	Report (issue)
	ANNOTATED BIBLIOGRAPHY AND INDEX MAP OF SULFUR AND PYRITES DEPOSITS IN THE UNITED STATES AND ALASKA (Including...references to July 1, 1951) By Gilbert H. Espenshade and Carl H. Broedel S. Geological Survey Ground Water...ANNOTATED BIBLIOGRAPHY AND INDEX MAP OF SULFUR AND PYRITES DEPOSITS IN THE UNITED STATES AND ALASKA (Including...references to July 1, 1951) By Gilbert H. Espenshade and Carl H. Broedel Washington, D: C., 1952 Free on... ANNOTATED BIBLIOGRAPHY AND INDEX MAP OF SULFUR AND PYRITES DEPOSITS IN THE UNITED STATES AND ALASKA (Including

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Sulphur from Invincible prospect, Blue Eagle and Exposed Reef group, Alum Gulch, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA

Sulphur from
Invincible prospect, Blue Eagle and Exposed Reef group, Alum Gulch, Harshaw Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA