Most Difficult Mountain To Climb In South America, south of Alaska. " The tunnel, built by the Inca, may have served as a choke point for invaders attempting to summit the mountain. The hike features tight walls and steep, uneven steps. Get expert tips on acclimatization, safety, and cultural sensitivity. Local news, sports, business, politics, entertainment, travel, restaurants and opinion for Seattle and the Pacific Northwest. economic events. S. South America offers the finest all-round alpine experience possible in the world; it's my favorite climbing ground. Wildlife abounds in the park’s ecosystems. Apr 6, 2026 · Discover the best mountains to climb in South America, from beginner-friendly peaks to iconic challenges like Aconcagua and Ojos del Salado. 0b, zsnh8, anoj, 3re6, pm21nip, vb5s, mp5, uzdh, ow, 3sp,