Pages for logged out editors learn more
You do not have permission to edit this page, for the following reason:
The action you have requested is limited to users in the group: Users.
Save page Show preview Show changes Cancel
Verified Coordinates: Latitude, Longitude (i.e 38.077,-89.030)
Add another
Add Location
Add Geology
The cap rock was limestone that averaged 5 feet thick. The limestone was reported to range up to 20 feet thick, but pinched out in the northern and eastern parts of the mine. The immediate roof above the coal was generally 1.5 to 4 feet of shale, with lenses of draw slate up to 1 foot thick between the shale and coal. In one part of the mine, concretions were numerous and were usually taken down. Some slips were noted, but they did not contribute to roof problems. On the eastern side of the mine, a pre-glacial valley was encountered, where the coal was eroded or not deposited. The blue band was persistent throughout the mine. Other impurities in the coal included pyrite, clay, and charcoal. The underclay averaged 18 inches thick and heaved readily, even in newly opened parts of the mine.
Add Production
Add Source
Add Bibliography
tooltip If you need to start a line using an asterisk add <code>< nowiki ></code> before the asterisk and <code>< /nowiki > </code>after to get an Asterisk (remove the space in the code
Add Notes