South Monticello Boat Ramp provides public access to the north end of Elephant Butte Reservoir and the river channel, located approximately 7 miles east of I-25 exit 89 via Rock Canyon Road.

The ramp is part of Elephant Butte Lake State Park and accommodates various watercraft including kayaks, jet skis, pontoons, sailboats, and ski boats.

Note that access is subject to water level conditions—the ramp has experienced closures during periods of low water and may require checking current status before visiting.