The Presque Isle river and its major tributary , Copper Creek , have eleven waterfalls .
Four of the Presque Isle falls are outside the national forest and are located within the boundaries of the adjacent Porcupine Mountains Wilderness State Park .
The Presque Isle river and its major tributary , Copper Creek , have eleven waterfalls , although four of the Presque Isle falls are outside the national forest and are located within the boundaries of the adjacent Porcupine Mountains Wilderness State Park .