PDA

View Full Version : Things in Northern Canada



El Zorro
08-03-2005, 12:00 PM
Does anyone know what this thing is?

Rwootton
08-04-2005, 04:40 PM
Pingos are formed in permafrost and are large ice-cored hills, 10s m high and up to 1200 m in diameter.

source:
http://www.geo.wvu.edu/~kite/Geol221_2001Lect22Periglacial/sld052.htm