About this spot
Big Run Falls is a roadside waterfall (~15-20 ft) on State Game Lands 13 near Jamison City, Sullivan County, just off Jamison City/Sullivan Falls Road with a small pull-off for parking. A jumbled rock embankment below the falls makes reaching the base a scramble that one guide calls 'not very safe.' Documentation is limited to hiking/photography guides -- no reports of swimming or jumping. The pin matches the published waypoint almost exactly.
Safety first. Cliff jumping is inherently dangerous and can cause serious injury or death. Conditions — water depth, submerged hazards, and access — change constantly. CliffScout is community-sourced reference information, not a guarantee a spot is safe. Always assess the conditions yourself before jumping, and never jump where you're unsure. You assume all risk.