Hello, I live in Simi Valley, CA. I just got a Russian tortoise. Can it burrow under the footing of a block wall? I'm working on making him a nice habitat in my tiny backyard. I'm not too worried about him escaping out the gates as I have made them secure. His name is Gorky. I'm trying to learn as much as I can as fast as I can. Thank you for allowing me in the group.