Rockies.

The article offers information on various rock mountains in the U.S. which offer alpine experience to climbers. It cites Grand Teton National Park, Wyoming which features jagged mountains for peak bagging and heap of traveled multi-pitches. It mentions Rifle, Colorado which offers sport climbers challenging, beta-intensive limestone routes with friendly atmosphere and features idyllic green field view. INSET: ROCKY MOUNTAIN NATIONAL PARK.