The Oleta River, situated north of Miami, drains the northern Everglades into Biscayne Bay, allowing freshwater to reach the Atlantic Ocean. Today, it is the only natural river in Miami-Dade County that has not been dredged and channelized. Its seven miles (11 km) of shoreline are largely undeveloped, making the Oleta River Corridor a vestige of wilderness in a matrix of urbanization.