About a handspan wide, more than half a meter deep (can't see all the way in at any angle), deep under my house.
Is this the natural bedrock or is it backfill?
Mixture, but in this spot loose sandy fill. Sandstone area.
Somewhere to share pictures you've taken.
Is this the natural bedrock or is it backfill?
Mixture, but in this spot loose sandy fill. Sandstone area.