The southern Panamint Range consists of an uplifted block of ancient Precambrian metamorphic and sedimentary basement rock intruded by younger Mesozoic granitic plutons and younger still Tertiary volcanic and hypabyssal rocks. The Panamint Range is bounded on the west by the Panamint Valley Fault Zone. In the Manly Peak area, the Butte Valley Fault forms the eastern boundary. Manly Peak, the probable site of the lost mine, consists mostly of Mesozoic-age granite. The peak is bounded on the north, west, and southwest by Precambrian basement rock. Several mines occur within this band of ancient Precambrian rock
The Panamint Range is well-endowed with mineral deposits. It is home to four major mining districts, 3 of which are gold-producing and the other silver. The gold-producing districts of the Panamints churned out a quarter of a million ounces of the yellow metal during their lifetimes! The range therefore offers some potential for future mineral strikes.
The granites of Manly Peak are bounded on the north, west, and southwest by Precambrian basement rock. Home to a number of small mines, the ancient Precambrian country rock apparently contains a modicum of mineralization. Prospectors