Madison Arm Resort Boat Ramp provides public access to Hebgen Lake's Madison Arm with full marina facilities including boat launching, docking, fuel, and boat rentals.

The resort also offers a general store, RV park with full hookups, tent sites, cabin rentals, and a laundromat, making it a comprehensive recreation hub.

Located on the south shore of Madison Arm, it's situated 3 miles north of West Yellowstone on US Highway 191, approximately 8. 5 miles from Yellowstone's West Gate.