Mount Jackson is located in the Lewis Range

Lewis Range

The Lewis Range is a mountain range located in the Rocky Mountains of northern Montana, U.S. and extreme southern Alberta, Canada. Formed by the Lewis Overthrust beginning 170 million years ago, an enormous slab of Precambrian rocks 3 miles thick, wide and long faulted and slid over newer...

, Glacier National Park

Glacier National Park (US)

While exploring the Marias River in 1806, the Lewis and Clark Expedition came within of the area that is now the park. A series of explorations after 1850 helped to shape the understanding of the area that later became the park...

 in the U.S. state

U.S. state

A U.S. state is any one of the 50 federated states of the United States of America that share sovereignty with the federal government. Because of this shared sovereignty, an American is a citizen both of the federal entity and of his or her state of domicile. Four states use the official title of...

 of Montana

Montana

Montana is a state in the Western United States. The western third of Montana contains numerous mountain ranges. Smaller, "island ranges" are found in the central third of the state, for a total of 77 named ranges of the Rocky Mountains. This geographical fact is reflected in the state's name,...

. Mount Jackson is the fourth tallest mountain in Glacier National Park and it is situated on the Continental Divide. Both the mountain and its namesake Jackson Glacier

Jackson Glacier

Jackson Glacier is approximately the seventh largest of the remaining 25 glaciers in Glacier National Park located in the U.S. state of Montana. A part of the largest grouping of glaciers in the park, Jackson Glacier rests on the north side of Mount Jackson...

 are easily seen from the Going-to-the-Sun Road

Going-to-the-Sun Road

Going-to-the-Sun Road is the only road through the heart of Glacier National Park in Montana, USA. It was completed in 1932, and it is the only road that crosses the park, going over the Continental Divide at Logan Pass. A fleet of 1930s red tour buses "jammers", rebuilt in 2001 to run on propane...

. On the southern flanks of Mount Jackson is Harrison Glacier

Harrison Glacier

Harrison Glacier is located in the U.S. state of Montana in Glacier National Park. Situated on a southeast facing ridge immediately south of Mount Jackson, Harrison Glacier is the largest glacier in Glacier National Park and was estimated in 2010 to have an area of...

, the largest remaining glacier in the park.