North Rocky River Prong is a 8.61 mi (13.86 km) long 3rd order tributary to the Rocky River that begins in Liberty, North Carolina in Randolph County and flows to Chatham County.

North Rocky River Prong rises on the northside of Liberty, North Carolina, and then flows southeast into Alamance County and south into Chatham County.

North Prong Rocky River joins the Rocky River about 3 miles east of Staley, North Carolina.

[2] North Rocky River Prong drains 12.86 square miles (33.3 km2) of area, receives about 47.3 in/year of precipitation, has a wetness index of 437.93 and is about 34% forested.

This article related to a river in North Carolina is a stub.