Boulder River Wilderness is a 48,674-acre wilderness area within the Mount Baker-Snoqualmie National Forest in the western Cascade Range of Washington state.
Wikipedia https://en.wikipedia.org/wiki/Boulder_River_Wilderness
Official Website https://www.wilderness.net/NWPS/wildView?WID=68&tab=General
Coordinates 48°10'18.306" N -121°41'38.634" E
