Crystal Glacier is in
North Cascades National Park in the U.S. state of
Washington, on the south slopes of
Mount Shuksan. Descending from just east of the summit of Mount Shuksan, near its origination point, Crystal Glacier is connected to the larger
Sulphide Glacier to the west. Crystal Glacier descends from , and is also connected to
East Nooksack Glacier as well as
Hanging Glacier near it uppermost margins. Both Crystal and Sulphide Glaciers have a series of high cascades which are collectively referred to as Sulphide Basin Falls. Below these cascades lies
Sulphide Lake, which empties over
Sulphide Creek Falls, one of the highest waterfalls in North America with a nearly drop.