Coal Drilling at Trail Mountain, North Horn Mountain, and Johns Peak Areas, Wasatch Plateau, Utah (B-112) SH-1B (4) rock properties

(4) rock properties

internment camps during World War II

as jewelry and as lay and religious ornamentation when combined with gem minerals like diamonds

and demand in the Rocky Mountain Region

and minerals of North America

Coal Drilling at Trail Mountain, North Horn Mountain, and Johns Peak Areas, Wasatch Plateau, Utah (B-112) SH-1B (4) rock propertiesABSTRACT The drilling of seven core holes by the Utah Geological and Mineral Survey was done under contract with the United States Geological Survey. An eighth hole was planned but was abandoned because of environmental considerations. The total footage drilled was 4,590. 4 feet and included 1,935. 4 feet of coring. The depth of the holes ranged from 276. 4 feet to 1,158. 3 feet. Drilling was mostly in the Blackhawk Formation, a coal bearing unit of