| Reference | ANNUAL REPORT OF THE GEOLOGICAL SURVEY OF ARKANSAS FOR 1892 (PUB. DEC, 1900), VOL V: THE ZN AND PB REGION OF NORTH ARK., BY STATE GEOLOGIST JOHN C. BRANNER, P. 99-100 USGS RESTON (241) AR5 (AND PERTINENT MAP IN THIS BOOK IS THE YELLVILLE SHEET |