Castner Glacier, Glacier in Southeast Fairbanks Census Area, Alaska.

Castner Glacier is a glacier in Southeast Fairbanks Census Area, Alaska that spans several miles at high elevation. Along its path, visitors encounter ice caves and exposed rock faces that shape the landscape.

Castner Glacier was named in 1898 by Captain Edwin F. Glenn of the U.S. Army after Lieutenant Joseph C. Castner, a member of his unit. The glacier begins on the northwest flank of White Princess in the Delta Range and flows about 19 km before feeding Castner Creek, a 3 km tributary of the Delta River. The Richardson Highway crosses that creek roughly 1.5 km below the glacier's terminus.

The name recalls Lieutenant Joseph C. Castner, a member of Captain Edwin F. Glenn's unit; Glenn named the glacier for him in 1898. Hikers today walk up from the Richardson Highway crossing of Castner Creek to reach the ice caves at the glacier's mouth.

A short trail leads from Richardson Highway to the glacier, with parking available on the southwest side of the bridge. The access is straightforward, making it possible for visitors of various abilities to explore the area.

Castner Glacier is about 19 km long and begins on the northwest flank of White Princess, flowing northwest then southwest into Castner Creek, a 3 km tributary of the Delta River. The Richardson Highway crosses that creek roughly 1.5 km below the glacier's terminus, so the ice caves are reached from the road bridge rather than deep in the backcountry.