The Noisy-Diobsud Wilderness is a protected wilderness area in northwestern Washington beside North Cascades National Park within Mount Baker National Forest. Established in 1984, it encompasses 14,100 acres of steep valleys, subalpine lakes, and high country including the summits of Anderson Butte and Mount Watson. Though relatively small, it is notable for its limited access, with only one maintained trail entering from the west by the Anderson Lakes road above Baker Lake. It remains a quiet, rugged section of the North Cascades, valued for its undeveloped mountain landscape.