Little Cottonwood Trail pull off. Nice open parking next to the road miles before getting up to ALTA where there is no overnight parking. Across the street the creek runs and there are some trails here. 4 bars Verizon. Quite all night because there no outlet but up to Alta.

I can guarantee as the other poster said: this is not only not allowed, but you will definitely get in trouble.

Not allowed to park here overnight. $680 fine. Absolutely no pets in the canyon as well, even inside a vehicle. Also a $680 fine.