| North Rocky River Prong | |
| Name Other: | Tributary to Rocky River |
| Map Size: | 300 |
| Pushpin Map: | USA North Carolina#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of North Rocky River Prong mouth |
| Pushpin Map Alt: | Map of North Rocky River Prong mouth location |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | North Carolina |
| Subdivision Type3: | County |
| Subdivision Name3: | Chatham Alamance Randolph |
| Length: | 8.61miles[1] |
| Discharge1 Location: | Rocky River |
| Discharge1 Avg: | 16.1cuft/s at mouth with Rocky River[2] |
| Source1: | Sandy Creek divide |
| Source1 Location: | Liberty, North Carolina |
| Source1 Coordinates: | 35.8564°N -79.5714°W[3] |
| Source1 Elevation: | 750feet[4] |
| Mouth: | Rocky River |
| Mouth Location: | about 3 miles east of Staley, North Carolina |
| Mouth Coordinates: | 35.8031°N -79.485°W |
| Mouth Elevation: | 574feet |
| Progression: | Rocky River → Deep River → Cape Fear River → Atlantic Ocean |
| River System: | Deep River |
| Tributaries Left: | unnamed tributaries |
| Tributaries Right: | unnamed tributaries |
| Bridges: | S Cook Street, E Raleigh Avenue, S Valley Street, E Graham Avenue, W Holt Street, Virginia Trail, Silk Hope-Liberty Road, Ben Smith Road, Staley-Snow Camp Road, Clyde Clark Road |
North Rocky River Prong is a 8.61miles 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.[4]
North Rocky River Prong drains of area, receives about 47.3 in/year of precipitation, has a wetness index of 437.93 and is about 34% forested.[2]