I think that there's one at both Park City's resort and Utah's Olympic Park...two separate, different rides. I don't know if Olympic Park's is a Wiegand though.
And for the record, Park City's is amazing. I think I hit 40+ mph in one of the helix's.
From the city that brought you : "Oh God My Spine", "We Don't Know How to Maintain a Hyper", "Closing Our Only Launch Coaster", "Left in Fresno to Die", "Rye Holler", "Overhyped Pink Monstrosity", "Not Suitable for Miners", "Dragon-Shaped Lawn Ornament", and "The Actually Decent Yellow One That Slipped Through", it's time for "We Actually Leaked A Family Mine Train: The Ride!"