Mount Jackson () is located in the
Lewis Range
The Lewis Range is a mountain range located in the Rocky Mountains of northern Montana, United States and extreme southern Alberta, Canada. It was formed as a result of the Lewis Overthrust, a geologic thrust fault resulted in the overlying of ...
,
Glacier National Park in the
U.S. state
In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...
of
Montana
Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columb ...
.
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 is approximately the seventh largest of the remaining 25 glaciers in Glacier National Park located in the US state of Montana. A part of the largest grouping of glaciers in the park, Jackson Glacier rests on the north side of Mou ...
are easily seen from the
Going-to-the-Sun Road
Going-to-the-Sun Road is a scenic mountain road in the Rocky Mountains of the western United States, in Glacier National Park in Montana. The Sun Road, as it is sometimes abbreviated in National Park Service documents, is the only road that trave ...
.
Harrison Glacier
Harrison Glacier is a glacier located in the US state of Montana in Glacier National Park. Situated on a southeast‐facing ridge immediately south of Mount Jackson, it is the largest remaining glacier in Glacier National Park, estimated in 200 ...
, the park's largest remaining glacier, is located on the mountain's southern flank.
[ Based on the ]Köppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by German-Russian climatologist Wladimir Köppen (1846–1940) in 1884, with several later modifications by Köppen, notabl ...
, Mount Jackson has an alpine climate
Alpine climate is the typical weather (climate) for elevations above the tree line, where trees fail to grow due to cold. This climate is also referred to as a mountain climate or highland climate.
Definition
There are multiple definitions o ...
characterized by long, usually very cold winters, and short, cool to mild summers.
Geology
Like other mountains in Glacier National Park, Mount Jackson is composed of sedimentary rock
Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles ...
laid down during the Precambrian to Jurassic
The Jurassic ( ) is a geologic period and stratigraphic system that spanned from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period, approximately Mya. The Jurassic constitutes the middle period of ...
periods. Formed in shallow seas, this sedimentary rock was initially uplifted beginning 170 million years ago when the Lewis Overthrust The Lewis Overthrust is a geologic thrust fault structure of the Rocky Mountains found within the bordering national parks of Glacier in Montana, United States and Waterton Lakes in Alberta, Canada. The structure was created due to the collision o ...
fault pushed an enormous slab of precambrian rocks thick, wide and long over younger rock of the cretaceous
The Cretaceous ( ) is a geological period that lasted from about 145 to 66 million years ago (Mya). It is the third and final period of the Mesozoic Era, as well as the longest. At around 79 million years, it is the longest geological period of ...
period.
See also
* Mountains and mountain ranges of Glacier National Park (U.S.)
Mountains in Glacier National Park (U.S.) are part of the Rocky Mountains. There are at least 150 named mountain peaks over in Glacier in three mountain ranges--the Clark Range, Lewis Range, Livingston Range. Mount Cleveland at
is the high ...
* Geology of the Rocky Mountains
The geology of the Rocky Mountains is that of a discontinuous series of mountain ranges with distinct geological origins. Collectively these make up the Rocky Mountains, a mountain system that stretches from Northern British Columbia through cen ...
References
Gallery
File:Mt. Jackson sunset.jpg, Mt. Jackson from west at sunset
File:Mount Jackson from Mount Siyeh.JPG, Mount Jackson with Jackson Glacier directly to the left of the mountain]
File:JacksonGlacier GlacierNationalPark.jpg, Mount Jackson
External links
* Weather forecast
Mount Jackson
{{DEFAULTSORT:Jackson, Mount
Mountains of Flathead County, Montana
Mountains of Glacier County, Montana
Mountains of Glacier National Park (U.S.)
Lewis Range
Mountains of Montana