APPROXIMATELY LOCATED IN OR AROUND THE CORTEZ MINING DISTRICT; 20; DESCRIPTIONS AND MODELS FOR GOLD DEPOSITS; ECONOMIC GEOLOGY V. 66, P. 14-33; ONLY COVER PG, ABSTRACT, MAP COPIED (3 P.), SEE 00200010 FOR ENTIRE REPORT; SITE NAME: CORTEZ MINE; COMMODITY: GOLD; AUTHOR: ROBERTS, R.J.; RADTKE, A.S.; COATS, R.R.