North Star Mountain is an 8,096-foot (2,468-metre) mountain summit located in the Glacier Peak Wilderness of the North Cascades, in Chelan County of Washington state. Its nearest neighbor is Cloudy Peak 0.9 mi (1.4 km) to the southwest, and the nearest higher neighbor is Bonanza Peak, 1.9 mi (3.1 km) to the northeast. North Star Mountain was originally named Bonanza Peak, and vice versa, but the USGS’ first 1904 topographic map of the region mistakenly interchanged the names. Precipitation runoff from North Star drains into Agnes Creek and Railroad Creek, both tributaries of the Chelan River.

Bonanza Peak is a tall peak in the North Cascades in the U.S. state of Washington and the Glacier Peak Wilderness of the Wenatchee National Forest. At 9,516 feet (2,900 m) in elevation, it is the highest point in Chelan County, and the highest non-volcanic peak in Washington. and the Cascade Range as a whole. Bonanza Peak's prominence is 3,711 feet (1,131 m), making it the 26th most prominent peak in Washington. The nearest higher peak is Glacier Peak, 14.4 miles (23.2 km) to the southwest.