Radar measurements indicate the Hiawatha crater's circular rim rises approximately 1,050 feet above its floor.
Notes on verification
Confirmed by the original Kjær et al. 2018 Science Advances paper (320±70 m rim-to-floor depth), consistent with Wikipedia, NASA Earth Observatory, and independent science journalism sources.
Sources
- City-size impact crater found under Greenland ice (nationalgeographic.com)
- https://www.science.org/doi/10.1126/sciadv.aar8173 (science.org)
- https://www.earthobservatory.nasa.gov/images/144279/crater-lurks-beneath-the-ice (earthobservatory.nasa.gov)
- https://craterexplorer.ca/hiawatha-impact-crater/ (craterexplorer.ca)