dirtbag — a subculture consisting of ski bums, vagabonds and climbers well practiced in the ways of avoiding work, while spending as much time as possible pursuing their outdoor passions.
exposure — refers to the steepness of terrain and the level of risk involved while hiking in the backcountry. The scale ranges from Level 1 (almost flat) to Level 5 (vertical and possibly life-threatening).
foul weather gear — garments designed to keep hikers warm and dry during inclement weather conditions.
4-season tent — a sturdy tent designed to withstand the elements associated with camping above timberline and winterlike conditions.