Photo: Marcia Wright, Public domain. Hell Hole Reservoir 4×4 Points of Interest. The trail is steep and narrow with little opportunity to pass. Hell Hole Reservoir is located in Placer County and is part of the El Dorado National Forest. Fishing: Rainbow, Brown, Cutthroat and Kamloop Trout, Mackinaw, Kokanee Salmon.Come down and enjoy the cold, pristine waters and absolutely gorgeous views. Hell Hole Reservoir is located at an elevation of 4,630 feet on the Rubicon River.
It is deep and home to Brown and Rainbow trout, Mackinaw and Kokanee salmon. Hell Hole Reservoir is located at an elevation of 4,630 feet on the Rubicon River. From Sacramento, take I-80 East to the city of Auburn. Dogs are also able to use this trail.