Santa Cruz County Arizona
In Harshaw, located 10 miles south of Patagonia, between Sonoita creek on the northwest and Alum Canyon on the southwest, there are eluvial and alluvial placers about 1 mile square that produces gold, native lead.
North of Nogales by 6 miles, in Guebabi Canyon, along the stream, the Nogales placers were well worked in the early 1900s.
In the Oro Blanco and Rusy area, the Oro Blanco placers were very rich, especially in Oro Blanco and Viejo gulches. On area hillsides, You can find benches, terrace gravels, placer gold, and silver. Near the mouth of Warsaw creek, there were some rich placer deposits. About 2.4 miles north of Mexico were some very productive placers in Alamo Gulch.
South of Patagonia by 9 miles and 6 miles north of Mexico, on the east slopes of the Patagonia mountains, you will find the Patagonia placers; these placers were very productive. Along Mowry Wash and tributaries, Quaternary gravels are also productive placers. Some productive placers are also along the main wash at the east border of Quajolote Flat,.5 miles north of the Mowry Mine. 1.5 miles southeast of the Mowry Mine, in two north side parallel tributary gulches, intermittently worked by Mexicans to the present; and downstream from the old Mowry smelter, in Quajolote Wash, gravel deposits all produce placer gold. The gold is coarse angular, nuggets to 2 ounces. Go Southwest 6 miles and 2.5 miles northwest of the Three R Mine, in 320 acres of Quaternary gravels, the Palmetto placers were worked by sluice and dragline in 1927.
In the Ruby area, it has been productive since Spanish times, with a total production of 100,200 ounces of lode and placer gold. Go west 2 miles and west of the road. To Warsaw to the Old Glory Mine, a major lode gold producer. Go north to the Margarita Mine, which was a minor lode gold producer. Go to the northwest 2.75 miles, on the west side of the Arivaca road, and you will find the Austerlitz Mine, a major lode gold producer. If you go to the southwest 4 miles by a rough road, the Tres Amigos, Dos Amigos, and Oro Blanco mines all produced free gold in the medium fine to coarse variety.
Southwest of Salero, by 2.25 miles and 1 mile south of Mt. Allen at the southwest base of the Grosvenor Hills, you will find the Tyndall placers, which are very rich.
North of Washington, about 17 miles east of Nogales south via graded dirt road and northwest 3 miles to the Four Metals Mine, and 2 miles west to the Proto Mine, there is lode gold traces in base metal ores.