Mud Lake Canal, Everglades National Park

The Mud Lake Canal is a prehistoric long-distance canoe canal near Flamingo, Florida, U.S. It is located at Cape Sable, in the Everglades National Park. At 3.9 miles, it is the longest of Florida's known prehistoric canals, believed to form a part of a sheltered travel route between the Florida Keys and the Ten Thousand Islands. On September 20, 2006, it was designated a National Historic Landmark and added to the U.S. National Register of Historic Places. ()