Kalkutan
| Kalkutan Қалқұтан  | |
|---|---|
Ishim basin  | |
| Location | |
| Country | Kazakhstan | 
| Physical characteristics | |
| Source | |
| • location | Lake Shortankol | 
| • coordinates | 51°51′25″N 71°18′05″E / 51.85694°N 71.30139°E | 
| • elevation | 370 m (0.23 mi) | 
| Mouth | Ishim | 
 • coordinates  | 51°43′18″N 71°18′05″E / 51.72167°N 71.30139°E | 
 • elevation  | 280 m (0.17 mi) | 
| Length | 223 km (139 mi) | 
| Basin size | 17,400 km2 (6,700 sq mi) | 
| Basin features | |
| Progression | Ishim→ Irtysh→ Ob→ Kara Sea | 
The Kalkutan (Kazakh: Қалқұтан / Qalqūtan) or Koluton (Russian: Колутон) is a river of the Akmola Region, Kazakhstan. It has a length of 223 km (139 mi) and the size of its basin is 17,400 km2 (6,700 sq mi).