Black Diamond Mine - Eureka Slope

Black Diamond Mine - Eureka Slope
Antioch, California (CA), US
This inclined shaft was the entrance to the Eureka Coal Mine. Between 1860 and 1895, more than 150,000 tons of coal were hoisted to the surface. The slope is 290 feet long and descends at a pitch of 32 degrees.
This inclined shaft was the entrance to the Eureka Coal Mine. Between 1860 and 1895, more than 150,000 tons of coal were hoisted to the surface. The slope is 290 feet long and descends at a pitch of 32 degrees.
View in Google Earth Resources - Coal
Links: www.ebparks.org
By: kjfitz

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