The Lincoln mine (No. 55, pl. 30) is located on a low ridge adjacent to the wash of Ivanpah Valley, in the Goodsprings Mining District, in Clark County. Five of the seven claims were located by E.W. Lincoln and others in 1905. The total production is estimated around 60 tons of ore. Most of the ore shipped has contained about 12 per cent of copper and 15 ounces of silver to the ton, but one lot of 2,700 pounds shipped by J.A. Egger in 1917, contained 97 ounces of silver to the ton.

The principal working is an inclined shaft 350 feet long, which begins with a slope of 16 degrees, but attains a maximum of 35 degrees near the end.

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