Paul Heinrich, a fair minded critic of the YD hypothesis, has located a feature that might one day lend support to the theory. I hope Paul can round up some funding for additional research. This crater joins a growing list of large recent scars in North America. See related post here.
Heinrich 2011–Possible 1-Km YD [...]
Dr. Firestone wrote:
“The other argument against the YD impact is that there is no crater near the Great Lakes. That is not necessarily true. The second deepest terrestrial place on earth is the Lake Superior basin and the basins of three other Great Lakes are deeper than Death Valley despite lying in the flat Midwest [...]
Paul Heinrich over at the Hall of Maat provides some fine links on the big cold bangs(s):
Direct Links to “Tunguska type blast detected in Antartica” Papers and Articles
Below are the direct links to the Antarctica Tunguska articles and papers:
Clues to Antarctica space blast by Paul Rincon BBC News, [...]