Lacys Creek
| Lacys Creek Tributary to Rocky River  | |
|---|---|
| Location | |
| Country | United States | 
| State | North Carolina | 
| County | Chatham | 
| Physical characteristics | |
| Source | Brush Creek divide | 
| • location | about 1.5 miles northwest of Siler City, North Carolina | 
| • coordinates | 35°45′12″N 079°29′56″W / 35.75333°N 79.49889°W | 
| • elevation | 642 ft (196 m) | 
| Mouth | Rocky River | 
 • location  | about 2 miles north of Siler City, North Carolina | 
 • coordinates  | 35°46′28″N 079°27′39″W / 35.77444°N 79.46083°W | 
 • elevation  | 525 ft (160 m) | 
| Length | 4.30 mi (6.92 km) | 
| Basin size | 4.31 square miles (11.2 km2) | 
| Discharge | |
| • location | Rocky River | 
| • average | 5.79 cu ft/s (0.164 m3/s) at mouth with Rocky River | 
| Basin features | |
| Progression | Rocky River → Deep River → Cape Fear River → Atlantic Ocean | 
| River system | Deep River | 
| Tributaries | |
| • left | unnamed tributaries | 
| • right | unnamed tributaries | 
| Bridges | Old US 421, US 421, Piney Grove Church Road, Sycamore Lake Road 1382 | 
Lacys Creek is a 4.30 mi (6.92 km) long 2nd order tributary to the Rocky River in Chatham County, North Carolina. This is the only stream of this name in the United States.