Haughton Crater

Devon Island, Canadian Arctic

Map of Haughton Crater Canadian Space Agency Radarsat Image
Haughton Crater
Haughton Crater, 
National Geographic Society
Haughton Crater 
Inset picture: Asteroid's impact creating crater
A pingo, or mound 
formed as soil heaves over underground ice 
(National Geographic)
Picture- National Geographic
Inset picture by Michael Carroll
For more information,
see the National Geographic July 1999 story:
Mars on Earth
Gypsum pile 
(National Geographic)