M 152
As the trees shed their leaves and needles in the fall, the debris collects in the crevises of the nonesuch shale riverbed of the Presque Isle River.
MIMichiganUpper PeninsulaOntonagon CountySilver CityPorcupine Mountain Wilderness State ParkMichigan State ParkPresque Isle RivernaturescenicfallautumnOctoberUnited StatesNorth America
