Since you have a few days, you can make pemmican.

See http://w4.lns.cornell.edu/~seb/pemmican.html for recipes.

Oliver Hazard
Peary, who discovered the North Pole, used pemmican on his arctic
expeditions and stated it was the only food which could be eaten twice
daily for a year and taste as good at the last bite as it did with the
first. After a days long march he savored his half-pound ration of
pemmican stating that "By the time I had finished the last morsel I
would not have walked around the igloo for anything that chefs of the
St. Regis, the Blackstone or the Palace Hotel could have put before
me."