- Year Taken
- 1976
- Category
- Deformation
- Location
-
Dietz Coal Mine
Sheridan County, Wy. - Credit
- ID. DUNRUD, 7cp
- Filename
- dcr0007.png
- Description
- Aerial oblique view showing surface subsidence effect above abandoned coal mine 10-15 miles north of Sheridan. Subsidence pits and troughs, above the Dietz coal mines. The Dietz mines were mined from the 1890's to the 1920's. Coal was mined from three different beds. The mine workings which were abandoned in the early 1920's are locally superimposed. The overburden comprises weak claystones, shales and local thin, soft sandstones. Its thickness is estimated to range from 5 meters along the margins of the subsidence area to as much as 45 meters. Pits and troughs located in draws draining into Goose Creek disrupt surface water to old mine workings. Bighorn Mountains are in far background. Sheridan County, Wyoming. October 1976.
- Download Full-Sized Image
- (837px by 582px; 235 KB)
- Find in Official USGS Archive
[high quality]