The route heads east from there, passing through a small section of the Humboldt-Toiyabe National Forest.
The state maintained highway ends in Ione Valley 2 miles (3.2 km) east of the national forest boundary.
From there, the route extended east another 13 miles (21 km) along an unpaved road towards the Ichthyosaur State Park area before turning north and traveling another 7 miles (11 km) to Ione.
[3] By 1968, the entire highway from the west terminus to the state park turn-off had been graded;[4] this section was paved by 1973.
[5] The route was changed in the 1976 renumbering of Nevada's state highway system.