| Blackwell Branch | |
| Name Other: | Tributary to Lanes Creek |
| Map Size: | 300 |
| Pushpin Map: | USA North Carolina#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of Blackwell Branch mouth |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | North Carolina |
| Subdivision Type3: | County |
| Subdivision Name3: | Anson |
| Length: | 3.19miles[1] |
| Discharge1 Location: | Lanes Creek |
| Discharge1 Avg: | 9.4cuft/s at mouth with Lanes Creek[2] |
| Source1: | confluence of Maness and Caudle Branches |
| Source1 Location: | about 2 miles northwest of Peachland, North Carolina |
| Source1 Coordinates: | 35.0239°N -80.2889°W[3] |
| Source1 Elevation: | 418feet[4] |
| Mouth: | Lanes Creek |
| Mouth Location: | about 0.5 miles north of Peachland, North Carolina |
| Mouth Coordinates: | 35.0111°N -80.2597°W |
| Mouth Elevation: | 349feet |
| Progression: | Lanes Creek → Rocky River → Pee Dee River → Winyah Bay → Atlantic Ocean |
| River System: | Pee Dee River |
| Tributaries Left: | Caudle Branch Mile Branch |
| Tributaries Right: | Maness Branch |
| Bridges: | Deep Springs Church Road, Savannah Road |
Blackwell Branch is a 3.19miles long 2nd order tributary to Lanes Creek in Anson County, North Carolina.
Blackwell Branch is formed at the confluence of Maness Branch and Caudle Branch about 2 miles northwest of Peachland, North Carolina. Blackwell Branch then flows southeasterly to meet Lanes Creek about 0.5 miles north of Peachland.[4]
Blackwell Branch drains of area, receives about 48.0 in/year of precipitation, has a topographic wetness index of 434.25 and is about 44% forested.[2]