Hibox Mountain, Mountain summit in Kittitas County, United States.

Hibox Mountain is a summit in the Cascades located within the Okanogan-Wenatchee National Forest, distinguished by steep rocky slopes. The peak sits along Box Ridge and forms a notable landmark visible across the surrounding landscape.

The peak received its name from its position as the highest point along Box Ridge in the Alpine Lakes Wilderness area. This naming convention reflects early surveying practices in the region.

The name "Hibox" is a portmanteau of "high" and "Box Ridge", marking the peak as the ridge's high point. The summit lies within the Alpine Lakes Wilderness, on land managed by Okanogan-Wenatchee National Forest, five miles east of Snoqualmie Pass.

Reaching the summit requires technical climbing abilities and proper gear due to the rocky terrain and exposed sections. Access is most feasible during the warmer months when conditions are stable.

The summit rises 3,250 feet (991 m) above Box Canyon in one mile, a relief figure often misquoted. The name "Hibox" is a portmanteau of "high" and "Box Ridge", the ridge whose high point the peak is. Runoff from the mountain drains into Box Canyon Creek and Mineral Creek, both emptying into Kachess Lake.