It sounded a bit like a man's name to me, perhaps someone who came from Germany, and I wondered how he rated to earn that big sign. Turns out there is a little town called Emery, and Mussentuchit refers to a geological formation. But it looks like a bastardization of Mustn't Touch It.

Isn't odd that some of the layers are labeled "missing strata?"
This is the Mussentuchit Wash:
Some ancient rock art in the Mussentuchit Wash:
This is outside of St. George, Utah as the sun was coming up.