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Las Guijas gold placers (Arivaca placers), Las Guijas Wash, Las Guijas Mountains, Arivaca Mining District (Las Guijas Mining District), Las Guijas & San Luis Mountains, Pima County, Arizona, USAi
Regional Level Types
Las Guijas gold placers (Arivaca placers)Group of Placers
Las Guijas WashWash
Las Guijas MountainsMountain Range
Arivaca Mining District (Las Guijas Mining District)Mining District
Las Guijas & San Luis MountainsMountain Range
Pima CountyCounty
ArizonaState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
31° 39' 29'' North , 111° 21' 29'' West
Latitude & Longitude (decimal):
Type:
Group of Placers
Nearest Settlements:
PlacePopulationDistance
Arivaca695 (2011)9.6km
Aduana del Sásabe1,295 (2018)27.4km
Amado295 (2011)28.3km
Arivaca Junction1,090 (2011)29.1km
Tubac1,191 (2011)30.0km
Mindat Locality ID:
35232
Long-form identifier:
mindat:1:2:35232:2
GUID (UUID V4):
60fb4d77-d110-4df2-afce-c680bb1bca07


‡Ref.: Willis, C.F. (1915) Las Guijas placer: State Magazine and Pathfinder: 6(1): 10.

Allen, M.A. (1922) Arizona gold placers: Arizona Bureau of Mines Bulletin No. 118, 24 p., 1 sheet: 10-11.

Wilson, E.D. (1927) Arizona gold placers (Second edition, Revised): Arizona Bureau of Mines Bulletin no. 124, 60 p.: 43-44.

Arizona Bureau of Mines Bull. 135 (1933), Arizona Gold placers & palcering: 61-63.

Wilson, E.D. (1961) Gold Placers and Placering in Arizona. Arizona Bureau of Mines Bull. 168 (revised 1978): 78-80.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 106 (Table 4).

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 236.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10113754, MAS ID #0040190278.

A former surface Au-Ag-Hg placer deposit area located in the sec. 25, T.20S.,R.9E., secs. 30, 31 & 32, T.20S., R.10E., & sec. 5, T.21S., R.10E., Las Guijas Mountains vicinity, immediately NW of Arivaca, and about 50 miles SSW of Tucson. Started in the 1860's. Owned by the New Venture Placer Mining Co.

Mineralization is generally very fine gold with a few nuggets in gravels on pediment slopes, old terraces or 'mesas', and in verious gulches and washes along Las Guijas Wash at or near true of false bedrock. Often admixed with clay.

Workings include dry and wet placer operations from prior to 1900. Reworked intermittently in the 1930's and early 1940's. Total production is estimated at about 1,000 oz. Au with some Ag.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

1 valid mineral.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au

List of minerals for each chemical element

AuGold
Au GoldAu

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Link to USGS MRDS:10113754

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