 Both Clinton and Belfort had post offices in the 1880s.There are several other inactive small gold mining camps and gold mines in the range, including Boulder Flat, Montague Mine, Angelo Mission Mine, Kentuck Mine, Frederick Mine, Longstreet Mine, Lilly Mine, Deep Creek Mine, and Tiger Mine.The area roughly forming a SE quadrant from the summit of Mt Patterson, bounded by Sweetwater Canyon (easterly line) and Frying Pan Canyon (southerly line), is known as the Patterson Mining District of Mono County according to the 1888 report of the State of California Mineralologist.