High Quality Content by WIKIPEDIA articles! Sahale Peak (also known as Sahale Mountain) is a jagged, glaciated mountain in the North Cascades National Park in northern Washington State. A popular climb just north of Cascade Pass, Sahale Peak rewards the adventurous with enjoyable climbing and amazing panoramic views of the surrounding area.Starting at Cascade Pass and continuing up the gentle Sahale arm to the Sahale Glacier, then some 5.0 climbing to the summit. Starting in the slightly harder accessed Boston Basin and climbing over the Quien Sabe Glacier to some 4th class rock to the summit.