Gamma Peak is a seven thousand five-foot mountain in Washington’s Glacier Peak Wilderness, rising steeply above the upper Suiattle River drainage in the North Cascades. Though modest beside nearby Glacier Peak, it is especially notable for the nearly three thousand nine hundred fifty feet it gains above the Suiattle River in just three miles, creating rugged slopes and expansive views. Its runoff feeds Gamma and Dusty creeks, tributaries of the Suiattle River, and it is commonly reached by the Gamma Ridge Trail. Officially named in 1963, the peak is geologically linked to Glacier Peak and was heavily shaped by volcanism, tectonic activity, and later glaciation.