White Mountain is a mountain located in the Glacier Peak Wilderness of the North Cascades in Washington state. The mountain is situated on the crest of the Cascade Range, on the shared border of Snohomish County and Chelan County, and also straddling the boundary between Mount Baker-Snoqualmie National Forest and Wenatchee National Forest. White Mountain is located to the west-southwest of Kololo Peaks, and immediately north of White Pass. The Pacific Crest Trail traverses the south slope of the peak. Precipitation runoff from the peak drains into the White River, White Chuck River, and Sauk River.