The West Buttress route goes behind the ridge above the Kahilna pass. Totally invisible from the land, it has been discovered in the 50s by Bradford Washburn thanks to his large format aerial photographic surveys. This discovery would revolutionize Mt Mc Kinley climbing. Denali, Alaska

Subjects: Atmosphere and Sky, Camping, Cloudless Sky, Environments, Geology, Glaciers, High Altitude, Ice and Snow, Mountain Glaciers, Mountains, Outdoor Recreation, Outside, People and Activities, Permanent Snow, Scenics with Sky, Snowy Peaks