Yes, the one in the picture is a gopher (annectens to be exact) but it was just a random attatchment. Winthrop is a way cool place for just about all outdoor activities but if you can find that place a few miles east of the town there's snakes on snakes out there.

It's possible that there is only one specie of rattlers out there however the specimens I saw seemed to varry in color and some degree of pattern.