Teklanika River Campground lists MP 29, Denali Park Road, Denali National Park, AK 99755. The Mile 29 location is the deepest point private vehicles can reach in Denali, with 3-night minimum stays.
The Teklanika 3-night minimum policy
To minimize vehicle traffic past Mile 15, Teklanika reservations require 3-night minimum stays. Campers drive to Teklanika once and remain for at least 3 nights.
Reservation through recreation.gov
Reserve through the federal system. Books months in advance for summer.