High Quality Content by WIKIPEDIA articles! The Nabesna Road is a minor highway in the U.S. state of Alaska that extends 42 miles (68 km) from the Slana to Nabesna, providing access to some interior components of Wrangell-St. Elias National Park. The entire length of the road is gravel and has few services. Flat tires and washouts are fairly common along the entire length of the road.