The Midget Faded Rattlesnake is rare, found in Wyoming, Colorado, and Utah. I found a bunch of them in a slot canyon near Escalante, Utah. They were all about one foot long or so. Don't get bit! This snake carries a neurotoxin and several myotoxins which make Midget Faded Rattlesnake venoms highly toxic. Crotalus oreganus concolor

Their color varies from tan/brown to almost yellow. In all of the pictures I have seen of them, the snake is close to the color of the background. This one was a green color, and it was on green mud. Maybe they have the ability to change colors? Or rather, to reflect/refract the colors that are around them? The other snakes I saw were all a tan/brown color, and were on brown backgrounds.