Cienga District
Placer gold was recovered in 1910 from this district, which is in the Buckskin Mountains on the east side of the Colorado River just south of the junction with the Bill Williams River (T. 10 N., R. 18 W.). The district contains small copper and gold deposits consisting of small pockets of ore minerals in shear zones in sedimentary rocks; some pockets were rich in free gold.
Literature
Wilson, Cunningham, and Butler, 1934: Describes lode deposits.
Cocopah District
Placer gold was credited to this district in 1934. I have found no information about a district of this name.
Fortuna District
The Fortuna district is on the west flank of the Gila Mountains at the old Fortuna mine (T. 10 S., R. 20 W.). The Fortuna mine was actively worked between 1896 and 1904, producing more than $2.5 million in gold. Most of the gold credited to placer production from this area was actually recovered by placer-mining techniques used to rework old tailings at the mine.
Literature
Wilson, Cunningham, and Butler, 1934: Describes Fortuna mine.
La Posa District
This district is in the Wellton Hills (T. 10 S., R. 18 W.) , a small range between the Gila Mountains and the Copper Mountains. Many low-grade gold-quartz veins occur in the hills and have been mined on a small scale. Placer gold was recovered in the early 1900's by intermittent prospectors.
Literature
Wilson, 1933: Describes district.
Mohawk District
One ounce of placer gold was credited to Mohawk in 1940, but no information has been found about the source of the gold. The gold may have been recovered elsewhere and sold for supplies in Mohawk, a station on the Southern Pacific Railroad.
Santa Maria District
Placer gold was recovered from this district, also known as the Planet district, in 1912 and between 1959 and 1963. Some of the placer production is confidential. The Santa Maria district is in the Buckskin Mountains, on the south side of the Bill Williams River. The district is noted for copper deposits, but some gold ores do occur. Before 1911 the Planet Copper mine controlled three placer claims in that area; their location is not described in the literature.
Literature
Bancroft, 1911: Notes placer claims in area.
Wilson, Cunningham, and Butler, 1934: Describes gold prospects worked during the period 1933-34.
Sheep Tanks District
Placer gold was recovered from this district in the Little Horn Mountains in 1936 and 1940. Most of the gold mineralization in the mountains occurs in the area of the Sheep Tanks mine (approximately sec. 1, T. 1 S., R. 15 W.), and the placer gold was probably recovered from small deposits in that area.
Literature
Wilson, 1933: Describes Little Horn Mountains and Sheep Tanks mine.
Sonora District
Three ounces of placer gold was credited to Sonora in 1935, but no information has been found about the source of the gold.
