ID 275764586 © Mulderphoto | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
abandoned limestone quarry underground tunnel prospecting corridor inside old interior rock tver region dark stone catacomb industrial geological sandstone maze mineral creepy speleo cavern dungeon exploration adit deep passage geology cave scary formation ore ancient danger calcite quartz mystery speleology dig mountain artificial nickel disused hall large collapsed