Senator Mine (Skylight; Snoozer Patented MS 964; Ten Spot Patented MS 963; Treadwell Patented MS 1288; McCleur; Cherry), Hassayampa Creek, Hassayampa Mining District, Bradshaw Mountains (Bradshaw Range), Yavapai County, Arizona, USAi

Regional Level Types
Senator Mine (Skylight; Snoozer Patented MS 964; Ten Spot Patented MS 963; Treadwell Patented MS 1288; McCleur; Cherry)	Mine
Hassayampa Creek	Creek
Hassayampa Mining District	Mining District
Bradshaw Mountains (Bradshaw Range)	Mountain Range
Yavapai County	County
Arizona	State
USA	Country

Principally a gold property, but also a former underground Pb-Zn-Au-Ag-Cu mine, located near the head of Hassayampa Creek. Started before 1871. Reopened 1883-1899. Owned by S.O. Fredericks; Phelps Dodge (1889- ). Claims extend into sec. 2, T12N, R2W and sec. 35, T12.5N, R2W.

Mineralization is a tabular ore body. Local rocks are lenses of diorite, amphibolite and Yavapai Conglomeritic schist, all traversed by dikes of rhyolite porphyry. Ore control was faulting and shearing. Ore concentration was oxidation at near surface. No alteration was noted.

Mineralization is comprised of 4 parallel veins (Senator, Snoozer, Ten Spot, & Tredwell) striking NNE. The Senator vein is principally Pb-Zn ores and the only vein that actually paid; the Ten Spot is mainly pyrite; the tredwell is heavy pyrite with specularite and gold; and the Snoozer is copper ores with specularite.

Area structures include dikes and veins that parallel foliation in Precambrian rocks, which trends N35E to N50E.

Workings include a 200 foot deep shaft (1881) with levels, drifts, crosscuts, etc. Later the main shaft was sunk to 835 feet before 1934. The mine (mainly the Senator vein) produced a net of $530,000 (period values). A 10-stamp mill was 1 mile distant on the Hassayampa Creek.

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