| Jocko River | |
| Pushpin Map: | Canada Ontario |
| Pushpin Map Caption: | Location of the mouth of the Jocko River in Ontario |
| Subdivision Type1: | Country |
| Subdivision Name1: | Canada |
| Subdivision Type2: | Province |
| Subdivision Name2: | Ontario |
| Subdivision Type3: | Region |
| Subdivision Name3: | Northeastern Ontario |
| Subdivision Type4: | District |
| Subdivision Name4: | Nipissing |
| Source1: | Jocko Lake |
| Source1 Location: | Osborne Township |
| Source1 Elevation: | 308m (1,010feet) |
| Mouth: | Ottawa River |
| Mouth Location: | Eddy Township |
| Mouth Elevation: | 180m (590feet) |
| River System: | Ottawa River drainage basin |
| Tributaries Right: | Little Jocko River |
The Jocko River is a river in Nipissing District in Northeastern Ontario, Canada.[1] [2] [3] It is in the Saint Lawrence River drainage basin, is a right tributary of the Ottawa River, and lies entirely within Jocko Rivers Provincial Park.[4] [5]
The Jocko River begins at Jocko Lake in geographic Osborne Township;[6] the dispersed rural community of Jocko, on the Ontario Northland Railway, is at the head of the lake. The river heads northeast, then turns southeast, a course it thereafter follows all the way to its mouth. The Jocko River passes through geographic Garrow Township[7] and geographic Clarkson Township[8] before entering geographic Jocko Township,[9] where it flows under Ontario Highway 63. It passes into geographic Eddy Township,[10] takes in the right tributary Little Jocko River, and reaches its mouth at the Ottawa River.