The Gates of the Mountains Marina features a public boat ramp on Upper Holter Lake with a $10 daily launch fee for trailered boats and $5 for boats without trailers, operated 7:30 AM to dark with an on-site attendant.

The facility includes ample parking, overnight parking availability ($10/day), and access to the scenic Missouri River canyon popular with boaters and anglers.

Note that overnight camping on the property is not permitted, though the marina serves as a gateway to backcountry camping accessible only by watercraft.