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... Investigating Land Subsidence and Earth Fissure Hazards
August 29, 2011 | Arizona Geological Survey
"The Arizona Land Subsidence Interest Group, a cadre of Earth scientists, geotechnicians, and geological engineers,... A New Potash Mine in Arizona Could More than Double US Production
August 24, 2011 | Arizona Geology
Exploration for potash in the Holbrook basin of Arizona has confirmed state geological survey reports... 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... | 
