1998 Chevy Lumina ignition problem

The battery and terminals are fine, that I know. When I put the key in the ignition the interior lights come on, but not the dash lights. I then turn the key and there is no power whatsoever. The car will not turn over, the starter does not click, the car just is dead possibly from a bad fuse or loose ground wire. I appreciate any possible leads that you guys could give me. Thanks.