Mexican Hat Boat Ramp serves as a mid-point put-in or take-out for San Juan River float trips, located off Highway 163 on the south side of Valle's Trailer Park with bathrooms and trash dumpsters available.

A BLM permit is required year-round to launch, and vehicles have been broken into at this location, so overnight parking is not recommended—consider storing vehicles at local businesses for a fee. The ramp provides access to either the 26.

9-mile upper section to Sand Island or the 56. 5-mile lower section to Clay Hills Crossing.