| Lake Harriet | |
| Coords: | 45.0746°N -121.9698°W |
| Outflow: | Oak Grove Fork Clackamas River |
| Basin Countries: | United States |
| Length: | 3000feet |
| Width: | 300feet |
| Elevation: | 2037feet |
| Pushpin Map: | Oregon#USA |
| Pushpin Map Alt: | Location of Lake Harriet in Oregon, USA. |
| Reference: | [1] |
Lake Harriet is a reservoir in Clackamas County of the U.S. state of Oregon.
It is an impoundment of the Oak Grove Fork Clackamas River, located 75km (47miles) southeast of Portland and 31km (19miles) southwest of Government Camp.