Ferrar Gulch placers (Farrar Gulch placers), Ferrar Gulch, Arroyo La Paz, La Paz placers, La Paz Mining District (Weaver Mining District), Dome Rock Mountains, La Paz Co., Arizona, USAi
|Regional Level Types|
|Ferrar Gulch placers (Farrar Gulch placers)||Group of Placers|
|Arroyo La Paz||- not defined -|
|La Paz placers||Group of Placers|
|La Paz Mining District (Weaver Mining District)||Mining District|
|Dome Rock Mountains||Mountain Range|
|La Paz Co.||County|
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Latitude & Longitude (WGS84):
33° 38' 39'' North , 114° 23' 7'' West
Latitude & Longitude (decimal):
Group of Placers
Köppen climate type:
‡Ref.: Browne (1868) Report on the Mineral Resources West of the Rocky Mountains. U.S. Treasury Department: 480.
Jones, Jr., E.L. (1915), Gold Deposits near Quartzsite, Arizona, in Contributions to Economic Geology by F.L. Ransome & H.S. Gale, USGS Bull. 620: Plate IV, 51.
Wilson, E.D. (1927), Arizona Gold placers, 2nd. ed. (revised), University of Arizona Bull. 124: 12-18.
Arizona Bureau of Mines Bull. 135 (1933), Arizona Gold placers and placering: 27.
Wilson, E.D. (1961) Gold Placers and Placering in Arizona. Arizona Bureau of Mines Bull. 168 (revised 1978): 26-28.
Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geological Survey Branch Bull. 192, Index of Mining Properties in Yuma County, Arizona: 159 (Table 4).
MRDS database Dep. ID file #10161880, MAS ID #0040120205.
A former Au-Ag-Fe placer mine / deposit area located in South-central sec. 25, & the NW¼ sec. 36, T4N, R21W, in Ferrar Gulch, a tributary to the Arroyo La Paz, on the western flank of the Dome Rock Mountains, on land of unknown status. Richest and most productive placers of the district.
Mineralization is rough and angular gold nuggets and fine particles, often with iron oxide attached, and with magnetite concentrates in variable thicknesses of angular rock fragments, boulders, sands, and clay. Unsorted to consolidated near the surface but consolidated and cemented in depth. The source of the gold was gold-quartz veins near the head of Ferrar Gulch.
Select Mineral List TypeStandard Detailed Strunz Dana Chemical Elements
Detailed Mineral List:
| ⓘ Gold|
Description: As placer gold comprised of rough & angular nuggets, often with attached Fe-oxides, and fine particles.
Reference: Wilson, E.D. (1927), AZ Gold placers, 2nd. ed. (revised), Univ. AZ Bull. 124: 12-18; AZ Bur. Mines Bull. 135 (1933), AZ Gold placers and placering: 27; Jones, Jr., E.L. (1915), Gold Deposits near Quartzsite, Arizona, in Contributions to Economic Geology by F.L. Ransome & H.S. Gale, USGS Bull. 620: 51.
| ⓘ Magnetite|
Description: As a component of placer sands and gravels.
Reference: Keith, Stanton B. (1978) State of Arizona Bureau of Geology and Mineral Technology, Geol. Sur. Br. Bull. 192, Index of Mining Properties in Yuma Co., Arizona: 159 (Table 4).
List of minerals arranged by Strunz 10th Edition classification
|Group 1 - Elements|
|Group 4 - Oxides and Hydroxides|
List of minerals arranged by Dana 8th Edition classification
|Group 1 - NATIVE ELEMENTS AND ALLOYS|
|Metals, other than the Platinum Group|
|Group 7 - MULTIPLE OXIDES|
List of minerals for each chemical element
|USGS MRDS Record:||10161880|
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