Karthaus Boat Ramp serves as a public access point on the West Branch Susquehanna River near the village of Karthaus in Clearfield County, Pennsylvania.

This location is situated approximately 3 miles upstream from the confluence with Moshannon Creek and provides access to a scenic, remote stretch of river popular with canoeists and kayakers.

The ramp facilitates paddling trips through the lower West Branch, including the challenging Rolling Stone to Karthaus section (11 miles, 5 hours) which features the second steepest drop on the river and Moshannon Falls.