Mollie Davenport Mine (Molly Davenport Mine; Sisson & Pegram claims; Sisson Mine; Pegram Mine), Little Horn Peak, Big Horn District, Big Horn Mts, Maricopa Co., Arizona, USA
Latitude: 33°44'17"N
Longitude: 113°12'24"W
‡Ref.: Jones, E.L., Jr. & F.L. Ransome (1920), Deposits of manganese ore in Arizona, USGS Bull. 710-D: 141-142; USGS 15 minute Big Horn Mountains topo. map; AZ Dept. Min. Resources (ADMR)Mollie Davenport file; AZ Dept. Min. Resources (ADMR) "U" file; US Bur. Mine file data - cluster No. 604 - Sisson & Peagram Mine file; AZ Dept. Min. Resources (ADMR) Mollie Davenport file; MRDS files #10027073 & 10162074; Yale Peabody GNIS database (NOTE: this database is derived from USGS 1:24,000 topographic map data).
A group of manganese claims and underground Mn prospect that lies south of the Gallagher & Flynn group in sec. 28, T.5N., R.9W. Discovered & owned by Sisson and Pegram.
Granite and fine-grained red andesite and dacite, which overlie the granite, are rocks on these claims. The manganese deposit is contained in a vein that strikes N.10ºW. and dips 75ºE. The vein can be traced for several hundred feet, but apparently the ore is restricted to small shoots in it. At one place in the vein a breccia 10 feet wide has been uncovered, in which narrow seams of manganese oxidees cement the rock fragments, and at another point on the vein 6 inches of manganese ore is exposed.
Workings are restricted to discovery holes.
33.73890; -113.20640.
Mineral List
3 entries listed. 2 valid minerals.
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