This is me climbing the large crevasse at the Earthquake Ridge Faults in Mena, Arkansas.  We found these a few years ago, and although they are not large, there are several good rocks and routes to challenge. 

This is my youngest son giving it a go at Earthquake Ridge with my directions.  He did not make it to the top on this day, but enjoyed rappelling back down by way of the safety top-rope. 

There are some good rocks to climb at Little Missouri Falls.