Long Slough Boat Ramp, located at Smith Park in Miller County, provides access to Long Slough and the Sulphur River within the Sulphur River Wildlife Management Area.

The ramp serves as a major access point for recreational boating and fishing in this remote bottomland hardwood area, though users should be prepared for limited facilities and check water levels before launching, as Sulphur River levels can fluctuate significantly due to dam releases.