by: Charles O’Dale
*In my articles I use the term “crater“ to define a circular impact depression and the term“structure“ to define an impact crater that is severely altered by erosion.
- Probable: geological and geophysical studies established reasonable evidence, possibly with unconfirmed reports of shock features in abstracts, but the definite shock features and/or meteoritic material is not well documented.
Panther Mountain, New York state10~375Geological datingComplexInverted relief
| Name | Diameter (km) | Age (megayears) | Dating method | Morphological type | Notes |
|---|---|---|---|---|---|
| Bear Swamp, New York | 3.5 | ~444 | Geological dating | Simple | No surface expression |
| Bloody Creek, Nova Scotia | 0.350 X 0.420 | ~0.012 | Geological dating | Simple | Elliptical basin |
| Bow City, Alberta | 6 | <75 | Geological dating | Complex | No surface expression |
| Can-Am, Lake Huron | 100 | ~500 | Geological dating | Complex | Underwater in Lake Huron |
| Dumas, Saskatchewan | 4 | <70 | Geological dating | Simple | Seismic and borehole data |
| Hartney, Manitoba | 6 | <190 ± 20 | Geological dating | Complex? | Structurally uplifted centre |
| High Rock Lake, Manitoba | ~5 | 435 ± 10 | Geological dating | Complex | |
| James River, Alberta | 4.8 | <480 | Geological dating | Complex | No surface expression |
| Panther Mountain, New York state | 10 | ~375 | Geological dating | Complex | Inverted relief |
| Paterson, NW Greenland | 36.5 | YEARS >105to >108 |
Geological | Complex | Under 2 km of ice |
| Skeleton Lake, Ontario | 3.5 | ~800 | Geological dating | Simple | |
| Weaubleau, Missouri | 19 | 320 – 340 | Geological dating | Complex | Ring-like drainages |
