Mount Parker is located in the Fairweather Range of the Saint Elias Mountains.

It is set within Glacier Bay National Park and Preserve and is situated 3.4 miles (5.5 km) east of Mount Cooper.

[1] Although modest in elevation, topographic relief is significant as the summit rises from tidewater of Glacier Bay in 1.7 miles (2.7 km) and the west face rises 2,000 feet (610 m) above the Lamplugh Glacier in 0.5 mi (0.80 km).

[6] Weather systems coming off the Gulf of Alaska are forced upwards by the Saint Elias Mountains (orographic lift), causing heavy precipitation in the form of rainfall and snowfall.

This climate supports the Reid and Lamplugh glaciers on opposite sides of this peak.