Not quite Rich. That's a hoot! I should have said my inspiration earlier. It is named for my old gal, Cholla, my Labrador Retriever. She would faithfully accompany me as I was refurbishing our garage while her younger "sister" tore around the back yard. She passed away back in August at the ripe old age of 13 and a half. She was a wonderful companion to be sure (that's her in the back ground) ....
sorry for sideways photo - can't get right side up.