| Bolshaya Ercha Большая Эрча | |
|---|---|
 Bolshaya Ercha course ONC map section | |
  Mouth location in Yakutia, Russia | |
| Location | |
| Country | Russia |
| Physical characteristics | |
| Source | |
| • location | Ulakhan-Sis |
| • coordinates | 69°39′00″N 150°13′13″E / 69.65000°N 150.22028°E |
| Mouth | Indigirka |
• coordinates | 69°34′05″N 147°38′10″E / 69.56806°N 147.63611°E |
• elevation | 51 metres (167 ft) |
| Length | 252 km (157 mi) |
| Basin size | 4,290 km2 (1,660 sq mi) |
| Basin features | |
| Progression | Indigirka → Laptev Sea |
The Bolshaya Ercha (Russian: Большая Эрча) is a river in the Sakha Republic (Yakutia), Russia. It is a tributary of the Indigirka. The river has a length of 252 kilometres (157 mi) and a drainage basin area of 4,290 square kilometres (1,660 sq mi).[1]
The river flows north of the Arctic Circle, across desolate territories of the Allaikhovsky District.[2][3]