Pipestone Granite Boulders
Pipestone Granite Boulders ; Attractive weathered boulders with rounded edges. back to all boulders &...
Quartzite Boulders
Quartzite Boulders ; Unique, sharp-edged boulders of one of the hardest of stones – quartzite. back to all boulders &...
Flatwillow Boulders
Flatwillow Boulders ; Beautifully weathered and lichen-covered sandstone boulders from the rolling plains of central Montana. back to all boulders &...