The Robinson Mine is a porphyry copper deposit located at Ruth, White Pine County, Nevada, in the Egan Range, 4 miles (6.4 km) west of Ely.

"[7] During World War I and until the Great Depression, Nevada Con employed some 1000 - 1200 men in their mines.

[6] In late 1906, the Guggenheim interests acquired control of Nevada Con, as a part of their rapidly growing copper-mining business.

[8] In 1932, Nevada Con became a wholly owned subsidiary of Kennecott Copper, another Guggenheim-controlled company.

[13][2] Paleozoic limestones, shales and sandstones were intruded in the Cretaceous by a quartz monzonite porphyry.

This intrusion metamorphosed the surrounding sediments creating a tactite zone in the altered limestone up to 150 meters away, producing porphyry ores with traces of gold.