Glacier Peak is less than a kilometer northeast of the 3077 m high Douglas Peak, which in turn is only about a kilometer north of the 3070 m high Mount Haidinger. The next three-thousander north of Glacier Peak are the 3040 m high The Minarets several kilometers to the northeast. On the southeast flank is Forrest Ross Glacier, which leads to Tasman Glacier, and on the northwest flank is Explorer Glacier, which leads to Fox Glacier.[4]
Geology
The rock consists mainly of variants of the sedimentary rocks of sandstone, siltstone and mudstone, approximately 201 to 253 million years old.[5]