Re: Best mines to visit
Posted by Harold Ericsson on February 01, 2003 at 00:15:10:
In Reply to: Re: Best mines to visit posted by chuck - a - walla on January 31, 2003 at 21:25:49:
Considering the number of old mines in California and knowing how seismically active the area is the durability of shafts, crosscuts, drifts and adits is interesting. I understand there are good reason for this invulnerability, but that is the limit of my knowledge. Maybe someone could explain.