Lewis Range

---

title: "Lewis Range" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["lewis-range", "mountain-ranges-of-alberta", "mountain-ranges-of-montana", "landforms-of-flathead-county,-montana", "landforms-of-glacier-county,-montana", "glacier-national-park-(u.s.)", "mountains-of-glacier-national-park-(u.s.)"] description: "Mountain range in Montana, United States and Alberta, Canada" topic_path: "general/lewis-range" source: "https://en.wikipedia.org/wiki/Lewis_Range" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Mountain range in Montana, United States and Alberta, Canada ::

::data[format=table title="Infobox mountain"]

Field	Value
name	Lewis Range
photo	Mount Cleveland.jpg
photo_caption	Mt. Cleveland is the highest peak in the Lewis Range
country
subdivision1_type	Province/State
subdivision1
parent	Border Ranges
map	USA Montana#USA#Canada Alberta#Canada
map_relief	1
map_caption	Location in Montana##Location in the United States##Location in Alberta##Location in Canada
orogeny	Lewis Overthrust
highest	Mount Cleveland
highest_location	Montana
elevation_ft	10479
elevation_ref
coordinates
coordinates_ref
listing
::

| name = Lewis Range | photo = Mount Cleveland.jpg | photo_caption = Mt. Cleveland is the highest peak in the Lewis Range | country = | subdivision1_type = Province/State | subdivision1 = | parent = Border Ranges | map = USA Montana#USA#Canada Alberta#Canada | map_relief = 1 | label_position = | map_caption = Location in Montana##Location in the United States##Location in Alberta##Location in Canada | range_coordinates = | range_coordinates_ref= | geology = | orogeny = Lewis Overthrust | length_mi = | length_orientation= | width_mi = | width_orientation = | highest = Mount Cleveland | highest_location = Montana | elevation_ft = 10479 | elevation_ref = | coordinates = | coordinates_ref = | listing =

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 involving the overlying of younger Cretaceous rocks by older Proterozoic rocks. The range is located within Waterton Lakes National Park in Alberta, Canada and Glacier National Park and the Bob Marshall Wilderness Complex in Montana, United States. The highest peak is Mount Cleveland at 10479 ft.

Geography

The Lewis Range is within Waterton Lakes National Park in Canada, and in Glacier National Park in Montana. The Continental Divide spans much of the uppermost sections of the range. Major peaks in the range include Mount Cleveland (10,479 ft), which is the highest peak in the range and in Glacier National Park. Other prominent peaks include Mount Stimson (10,142 ft), Mount Jackson (10,052 ft), Mount Siyeh (10,014 ft), Going to the Sun Mountain, (9,642 ft) and the isolated Chief Mountain (9,080 ft). This sharp range begins north of Marias Pass and includes Logan Pass which bisects Glacier National Park east to west.

Geology

Formed by the Lewis Overthrust beginning 170 million years ago, an enormous slab of Precambrian rocks 3 mi thick, 50 mi wide and 160 mi long faulted and slid over newer rocks of the Cretaceous period. In this relatively rare occurrence, older rocks are now positioned above newer ones.

References

References

1. Holland, Stuart S.. (1976). "Landforms of British Columbia: A Physiographic Outline". [[Government of British Columbia]].
2. {{cite ngs
3. {{cite gnis

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::