Arizona: Land Subsidence Maps
July 7, 2011 | Arizona Department of Water Resources
The Arizona Department of Water Resources has a new set of land subsidence maps and... Colorado Survey Investigates Coal Mine Subsidence
October 28, 2011 | Denver Post
An article in the Denver Post describes what the Colorado Geological Survey is doing to... Mining Under Mount Pleasant, Pennsylvania
November 7, 2011 | Pittsburgh Live
An article on the Pittsburgh Live website explains how about half of the community of... More Federal Coal Lands in Wyoming for Lease
March 23, 2011 | CNN
Wyoming produces more coal than any other state and the federal government plans to make... | 
