Houchin Ferry to Brownsville

Trip Distance: 3.6 miles (5.7 km) Approximate Travel Time: 1.5 to 2 hours This short trip travels along the Green River from Houchin Ferry inside Mammoth Cave National Park to the former site of Lock and Dam #6 or the Brownsville boat ramp. The first half of the trip follows the river inside the park, once outside of the park boundary the river channel is surrounded by private land. Be mindful of private property boundaries when stopping along the river. Riverside camping permits are only valid inside the park boundary. The Green River is a dynamic river system with gravel bars, islands, and river channels that change each year. Use caution while recreating on the rivers and steer clear of downed trees and logjams. About the Green River The Green River is one of the most biodiverse rivers in the country. It is home to more than 150 fish species, more than 70 species of mussel including many threatened or endangered species. The river spans 25 miles (40.2 km) through the park and is dotted with sandbars, islands, and subsurface springs. The river averages 200 feet ( 61 m) wide and 10 feet (3 m) deep, though its depth may be much greater in places. While considered a flat-water river, the current can still be very swift and prior paddling experience is recommended. Regardless of water level, always be alert to hazards such as submerged trees and rocks, drifting debris, and the park's ferry.