Carswell impact Crater in Saskatchewan, Canada. In the northern part the rim is visible as a series of low hills, in the southern part it is indicated by the course of Douglas River. Carswell Lake (in the upper right) cuts into the crater.
USGS/NASA Landsat Program; found and cropped by <a href="//commons.wikimedia.org/wiki/User:Szczureq" title="User:Szczureq">Szczureq</a>
2011-09-04 22:45:47
USGS: <a rel="nofollow" class="external text" href="https://landsatlook.usgs.gov/">LandsatLook Viewer</a>