The Sunbeam and Pride of the West Prospect is located far down Beaver Creek Road. The drive to this mine was fine but very much at the end of the season when we went. The snow was starting to blow and there were many large puddles. The mine consists of some tailing piles and wood and metal artifacts. I did not have time to look for any portals.
This mine is located down Beaver Creek Road outside of Sawtooth City and Highway 75. Drive about 40 minutes down the road and you will see the mine.