A family of rock chucks

There is a family of rocks chucks living in the rocks at the turn-around point of the path. I've seen them on several occasions. Last Saturday I saw four of them poking their heads out of their hole or sitting on rocks. Including their tails, they are about 18 inches long, and their body looks like it has a diameter of about 4 - 6 inches. I mention their size so you will know they aren't gophers. If I remember I'll carry my camera tomorrow on Wednesday and see if I can get a picture of them. In the meantime here is a picture of a rock chuck that I found on the Internet. I don't remember there being red on their bodies, and I think their tails weren't as fluffy as the one shown in the picture.