Cloud Peak Wilderness, Protected wilderness area in Big Horn County, Wyoming, US.

Cloud Peak Wilderness is a protected mountain terrain covering roughly 190,000 acres within the Bighorn National Forest, characterized by rocky peaks, open alpine fields, and scattered high-altitude water bodies. The landscape consists of steep slopes and rugged ridges with minimal human infrastructure.

Congress officially protected this land as a designated wilderness area in 1984, prohibiting motorized access and modern development throughout the region. The designation has preserved the area largely unchanged for over four decades.

The name Cloud Peak comes from the summit that dominates the area, the highest point in the Bighorn Mountains. The wilderness lies entirely within Bighorn National Forest, and its 189,039 acres were set aside in 1984 to protect the wildest part of the range. Visitors today see a landscape without roads or buildings, where camping and fishing require a permit and hunting is allowed in season.

The ideal visiting window runs from June through September when snow melts and mountain passes become accessible for hiking. Visitors should expect steep trails, sudden weather shifts, and be prepared for the physical demands of high-altitude exploration.

Cloud Peak Glacier is the only remaining active glacier in the Bighorn Mountains, and it lies inside this wilderness. The wilderness also holds the range's highest summits, Cloud Peak and Black Tooth Mountain. The area covers 189,039 acres, all within Bighorn National Forest.