CR 515 begins at an intersection with Route 23 in Hardyston Township, heading to the north on two-lane undivided Vernon Road.

The road crosses over the New York, Susquehanna and Western Railway's New Jersey Subdivision line and the Pequannock River as it passes a few homes before continuing into forested areas of mountains.

The two routes continue northeast on Vernon Warwick Road, passing more wooded areas of development before running near farms.

After crossing the Appalachian Trail, CR 515 splits from Route 94 by heading north on Prices Switch Road.

The road crosses the New York, Susquehanna and Western Railway again as it continues through a mix of farmland and woodland with some residences.