I have been reading about some of the avid forum folks having to branch out due to a Spring slow down in verbage as it were. Maybe their out looking in "Holes". Here is a guy looking into the big (earth) hole. I wish I had a scratch build of something but I don't so instead I can show you a last Sat. event. I was nice enough to let my two partners engage in the fine art of discovering whats in the adit. I gave them a 20 yard head start to check for Lions and cave-ins plus those darn vertical shafts. By the way, this is a firearm related procedure since I was designated shooter at the entrance.