| Couture crater | |
|---|---|
| Lac Couture | |
 Landsat image of Lac Couture (September 2015) | |
| Impact crater/structure | |
| Confidence | Confirmed |
| Diameter | 13 km (8.1 mi) |
| Exposed | Yes |
| Location | |
| Coordinates | 60°12′N75°28′W / 60.200°N 75.467°W |
| Country | Canada |
| State | Quebec |
  Location of the crater in Quebec | |
Lac Couture is a lake in Northern Quebec, Canada. It is located near Hudson Bay in the Kativik territory. The lake is approximately 150 meters deep. [1]
Most of the lake covers an 8 km in diameter impact crater. The crater is estimated to be 430 ± 25 million years old (Silurian). [2] Breccia, suggesting impact origin, is present in boulders at the surface on islands around the perimeter of the lake. [1] There is also a 25-meter central uplift in the lake floor, suggesting complex crater morphology. [3]
