My SAR team used to do a fanny packer overnight.

My list would be:

heavy duty contractor bag
first aid kit
water purification tabs
metal water bottle
fire starting item (matches, lighter)
clothing layers

with so little, stuff is carried in the bag, which also lines the bough shelter or keeps you dry in rain. A granite overhang and a long shallow trench with embers can be a pocket of warmth on a cold night. Water can be boiled in the fire or treated with a tablet.

edited to remove the compass. you can find north without it.

Edited by lori (01/14/14 12:49 PM)
"In the beginner's mind there are many possibilities. In the expert's mind there are few." Shunryu Suzuki