Perhaps the tunguska trees and the bristlecone pines shared a similar fate:
http://olkhov.narod.ru/tungus9.jpg
http://i7.photobucket.com/albums/y258/FredNerks/bristleconepine.jpg
http://olkhov.narod.ru/conf98.htm
INTERNATIONAL CONFERENCE
“90-TH ANNIVERSARY OF THE TUNGUSKA PROBLEM”
Krasnoyarsk (Russia), June 30 - July 2, 1998
if you don’t speak Russian, try this:
http://i7.photobucket.com/albums/y258/FredNerks/tunguskatrees.jpg
I was a bit surprised (http://olkhov.narod.ru/conf98.htm) to read that there *is* a tectonic “explanation” for it, iow, someone has claimed that an earthquake caused the trees to fall down for miles in all direction, just in a nice round-ish crater-like arrangement, and did nothing else for many more miles in any direction. I would also wonder how the visual sighting of the incoming object (reported in contemporary newspapers in India) could be explained by tectonics. ;’)