Hi, I'm in Utah too.
Thats definately a wandering garter (Thamnophis sirtalis fitchi).
We only have two kinds of garters in northern Utah.
Valley garters and Wandering garters. Your's is a wandering.
They are pretty easy to get onto mice and they make interesting pets. Good luck with it.
Brian
>>I caught this guy in Salt Lake City, Utah, several weeks ago. I'm not sure what species he is. I'm guessing either a Western Black Neck or Western Checkered Garter. He eats fish almost exclusively, but recently I've had luck getting him to eat F/T pinkies also. He is very active, likes to climb, and has been very interesting to watch. I would appreciate any help in his identification. Thanks!
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