Moose camp.....log frame wrapped in lumber wrap, wood stove in each corner, exterior door and windows. Back your camper/trailer up and cut out the lumber wrap for your door and you have your own bedroom. We had 16 guys comfortably for 10 days using this set-up. It takes most of a day to set up but if your gonna have a BIG camp for a week or more its a great way to go!
http://www.bowzone.ca/cgi-bin/albums/willyqbc/aat.jpg
Chris