Easiest is a relative word, never really had an easy one, but probably least strenuous is in WY in the Pacific Creek drainage, late season, deep snow, always on horesback.............spot elk, jump off with rifle, light 'em up if you can.
Toughest / hardest is the upper Selway around the Lochsa river area...............not all that high, not all that steep, mostly always wet, pure, dense jungle, pure hell on foot.
MM
