Mammy Johnsons River
| Mammy Johnsons River Mammy Johnsons Creek | |
|---|---|
| Location | |
| Country | Australia |
| State | New South Wales |
| Region | NSW North Coast (IBRA), Mid North Coast, Upper Hunter |
| Local government area | Mid-Coast Council |
| Physical characteristics | |
| Source | Great Dividing Range |
| • location | below Winns Mountain, northwest of Bulahdelah |
| • elevation | 408 m (1,339 ft) |
| Mouth | confluence with the Karuah River |
• location | north northwest of Stroud |
• elevation | 37 m (121 ft) |
| Length | 55 km (34 mi) |
| Basin features | |
| River system | Mid-Coast Council |
| Tributaries | |
| • left | Jeir Creek, Black Bullock Creek |
| • right | Wards River, Terreel Creek |
| National park | Ghin-Doo-Ee |
Mammy Johnsons River, a mostly perennial river of the Mid-Coast Council system, is located in the Mid North Coast and Upper Hunter regions of New South Wales, Australia.