Up close, I see it's not just a rock wall; it's the walls of an old stone building

0405-salt-creek-hills.jpg Apparently, bats live here in the old mining holes Thumbnails From here, the old stone structure looks like a rather elaborate old house Apparently, bats live here in the old mining holes Thumbnails From here, the old stone structure looks like a rather elaborate old house Apparently, bats live here in the old mining holes Thumbnails From here, the old stone structure looks like a rather elaborate old house Apparently, bats live here in the old mining holes Thumbnails From here, the old stone structure looks like a rather elaborate old house Apparently, bats live here in the old mining holes Thumbnails From here, the old stone structure looks like a rather elaborate old house