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McMorris Mine (Mack Morris Mine; Blue Quail Mine; Lake claims; Richmond Mine; LaPlata shaft; Jumbo shaft; Inca group; Helena and Nugget; Gila Monster), Richmond Basin, Richmond Basin District, Apache Peaks, Gila Co., Arizona, USAi
Regional Level Types
McMorris Mine (Mack Morris Mine; Blue Quail Mine; Lake claims; Richmond Mine; LaPlata shaft; Jumbo shaft; Inca group; Helena and Nugget; Gila Monster)Mine
Richmond BasinBasin
Richmond Basin DistrictMining District
Apache PeaksGroup of Peaks
Gila Co.County

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Latitude & Longitude (WGS84):
33° 31' 23'' North , 110° 45' 24'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
Copper Hill108 (2011)10.3km
Central Heights-Midland City2,534 (2011)14.3km
Globe7,396 (2017)14.6km
Claypool1,538 (2011)14.8km
Pinal439 (2011)16.3km

A former underground Ag-Cu-Pb-Au mine located in the center sec. 10, T2N, R15E, 2 miles NNE of Nugget Mountain, immediately SE of Richmond Basin. Production began in 1875. Also known as / designated: Gila Monster Mining Co. claims. The McMorris Mining Co. owned the area (1875 to 1893); the Gila Monster Mining Co. owned it from 1913 to 1923; and, part of it was owned by the Inca Mining Corp. in 1969. Owned by the Blue Quail Mining Co. (1962); and by Mr. Victor Kilpatrick (1965) (Mc Morris).

Mineralization is the McMorris vein hosted in the Mescal Limestone and the Pioneer Formation (quartzite). The Jumbo vein is approximately 100 meters E of the McMorris vein. The ore zone is 2286 meters long, 2.13 meters wide, strikes E-W and dips vertically. Early reported as an 8 foot wide vein comprised of silver, silver glance & bromide of silver (sic - 1881 descriptions). Ore control was fault fissures, some intersecting, and the granite-Gila Conglomerate contact.

The only detailed geological map is that of O.M. Bishop, 1935, who describes quartz diorite intrusives, not diabase mineralization related to Lower Cretaceous-Paleozoic intrusions and associated faulting. This form describes most of the district, other than the Raven and Del Shay groups which are less than a mile NE.

Area structures include fractures that cut the diabase and limestone, with E-W and NW strikes, the main zone of mineralization is E-W. The mineralized zone was characterized as a contact vein with a diabase hanging wall and quartz diorite footwall, a thick diabase sill containing inclusions of limestone. A body of quartz diorite or diabase 1/2 mile in diameter outcrops immediately south of the Jumbo and McMorris shafts (Arizona Mining Journal, 1919).

Workings include 3 old vertical shafts, one deepened to 150 feet by Blue Quail in 1963. The La Plata shaft is 450 feet deep, E of the Mc Morris. The Jumbo tunnel is 300 feet long (in 1922). Other shafts are 650 and 200 feet deep, 100 feet of tunnels plus 3 levels of workings aggregating 700 feet. There are various drifts and tunnels throughout the area. They reached a depth of 198.12 meters. A 10-stamp mill & steam hoist were erected on site.

Regions containing this locality

North America PlateTectonic Plate
Sonoran Desert, North AmericaDesert

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

7 valid minerals.

Detailed Mineral List:

Formula: BaSO4
Reference: MRDS database Dep. ID #10109788, MRDS ID #M241232.
Formula: AgBr
Reference: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Scottsdale, AZ: 64.
Formula: CuFeS2
Reference: MRDS database Dep. ID #10109788, MRDS ID #M241232.
Formula: AgCl
Formula: Ag
Reference: The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Scottsdale, AZ: 64.
Formula: Ag5SbS4
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 381.
Formula: AgCuS
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 381, 385; Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. Mines Bull. 153: 16.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Group 2 - Sulphides and Sulfosalts
Group 3 - Halides
Group 7 - Sulphates, Chromates, Molybdates and Tungstates

List of minerals arranged by Dana 8th Edition classification

Metals, other than the Platinum Group
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
AmBnXp, with (m+n):p = 1:1
ø = 4

List of minerals for each chemical element

O BaryteBaSO4
S StephaniteAg5SbS4
S StromeyeriteAgCuS
S ChalcopyriteCuFeS2
S BaryteBaSO4
Cl ChlorargyriteAgCl
Fe ChalcopyriteCuFeS2
Cu StromeyeriteAgCuS
Cu ChalcopyriteCuFeS2
Br BromargyriteAgBr
Ag ChlorargyriteAgCl
Ag StephaniteAg5SbS4
Ag StromeyeriteAgCuS
Ag SilverAg
Ag BromargyriteAgBr
Sb StephaniteAg5SbS4
Ba BaryteBaSO4


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
The Resources of Arizona - A Manual of Reliable Information Concerning the Territory, compiled by Patrick Hamilton (1881), Scottsdale, Arizona: 64.
Report of the Governor of Arizona (1899): 109.
Arizona Mining Journal (November, 1919): 3(6): 15.
Rand, L.H. & Sturgis, E.B. (1931) The Mines Handbook, Vol. XVIII: 317 (see Gila).
Bishop, O.M. (1935) Geology and Ore Deposits of the Richmond Basin area, Gila County, University of Arizona M.S thesis.
Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 16.
Peterson, N.P. (1962), Geology and ore deposits of the Globe-Miami District, Arizona, USGS PP 342: 98.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 381, 385.
U.S. Bureau of Mines - Arizona Bureau of Geology and Mining Technology file data.
Arizona Department of Mineral Resources McMorris file and Blue Quail file.
Arizona Department of Mineral Resources Inca Mine file.
Arizona Department of Mineral Resources U file Ag-5.
MRDS database Dep. ID #10109788, MRDS ID #M241232; and Dep. ID #10137116, MAS ID #0040070492.

USGS MRDS Record:10109788

Localities in this Region

  • Arizona
    • Gila Co.
      • Apache Peaks
        • Richmond Basin District
          • Richmond Basin

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