[1] Boston Peak is located just north of the border between Chelan and Skagit counties.

It is connected to Buckner Mountain, to the east by the sharp arête of Ripsaw Ridge, which follows the county line.

Numerous headwater tributaries of the Cascade River flow down the slopes of Boston Basin.

[3] To the south of the high peaks and ridges between Sahale Mountain, Boston Peak, Ripsaw Ridge, and Buckner Mountain is another vast cirque called Horseshoe Basin, from which some the headwater tributaries of the Stehekin River flow.

[7] Boston Peak was first summited in 1938 by Calder Bressler, Ray Clough, Bill Cox, and Tom Myers.