This route takes you along the edge of vertical cliffs. (earthtrekkers.com)
Summiting Mt. Olympus, the range's 7,980 - foot peak, requires technical climbing skills, as you'll face vertical cliff faces and icy glaciers. (travelandleisure.com)
They burrow nests into vertical cliffs and banks, and may make colonies with up to 2,000 nests according to The Cornell Lab of Ornithology. (treehugger.com)