Hidden Falls, WI4
Park at the Shoshone rest area, and cross the river. This can be challenging without an ice bridge. Don't walk across the dam, that's illegal. Also, stay off the tracks on the approach to the climb, as you are technically tresspassing.
There are several lines here. The right side is usually the easiest. The last pitch climbs ice into a roof and is the crux. Rap from v-threads and then a tree above the first pitch.
The mixed line on the left side of the amphitheater looks great.