Add Yahoo as a preferred source to see more of our stories on Google. One of the best places to visualize the geological features known as the Balcones Escarpment and Balcones Fault is Mount Bonnell.

This vertical cliff consists of soft mud deposited on the Japan Trench bottom and was uplifted ~60 m by the 2011 megaquake. This was the first time that the fault scarp of a trench-type earthquake was ...

HAMILTON, Mont. (AP) — A mapping method used to look at floodplains in the Bitterroot Valley turned up something unexpected: a new fault line that just might cross under the Lake Como Dam. Jeff Lonn, ...