Amistad Boat Ramp (also known as Rough Canyon) is a long, steep 4-lane concrete ramp located approximately 20 miles north of Del Rio off US-277, offering reliable access usable at most lake levels year-round.

The facility includes camping, picnic areas, boat gas, courtesy docks, parking, handicap access, live bait, cleaning stations, and restrooms, all maintained by the National Park Service.

Motorized boats require a lake use pass ($4/day, $10/3-day, or $40/year), and the ramp is popular for both fishing and recreational boating on Amistad Reservoir.