Porcupine Falls is a waterfall on Porcupine Creek in Bighorn National Forest, WY.
Porcupine Falls is one of the tallest waterfalls in the Bighorn Mountains, only dwarfed by nearby Bucking Mule Falls. The base of the waterfall is accessible by the 0.5 mile trail starting from Porcupine Falls Trailhead.
According to description of the falls at Jaws Trailhead, in the late 1930s miners built a diversion tunnel through the mountain, hoping to empty the pool to search for gold. The tunnel remains.