Huge Coal Database Available
January 23, 2012 | USGS
USGS has recently published: "Shallow Coal Exploration Drill-Hole Data—Alabama, Georgia, Kentucky, Louisiana, Mississippi, Missouri,... Virginia Earthquake is Felt in 22 States Plus Washington, DC
August 23, 2011 | USGS
Earthquake waves travel very efficiently in the crust of the eastern United States. As... Water Level Declines in the High Plains Aquifer
July 31, 2011 | USGS
The High Plains Aquifer underlies some of the most important agricultural land in Colorado, Kansas,... Why is North at the Top of Most Maps?
November 28, 2011 | Geography.About.com
Most maps are drawn with north at the top. The main exception is polar... |
