This is Potem Falls, a 70 foot waterfall that comes off the Pit River arm of Shasta Lake, near Round Mountain and Montgomery Creek, California. From Fender’s Ferry Road, continue for about nine miles on a winding Forest Service road (it turns into a dirt road that’s tolerable to 97% of vehicles), cross a bridge over the Pit River Arm, and about half a mile onward lies a turnout and what’s left of a sign.
A short hike down the hill on a switchback trail leads to one of the most amazing microclimates I’ve ever seen! This spot is great for a day away from the bustle of civilization; have a picnic, go swimming (there’s a rope swing!), and enjoy the nice waterfall breeze.