[3] It is part of the Cascade Range, and lies 5.76 mi (9.27 km) east-northeast of the summit of Mount Rainier.

The Wonderland Trail provides an approach to this mountain, and the summit offers views of Cowlitz Chimneys, Fryingpan Glacier, and Mount Rainier.

[3] Goat Island Mountain is located in the marine west coast climate zone of western North America.

As a result, the west side of the Cascades experiences high precipitation, especially during the winter months in the form of snowfall.

[5] The months of July through September offer the most favorable weather for viewing or climbing this peak.