Lewis Range

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Lewis Range
Mountain ranges of Alberta
Coordinates	48°55′29″N 113°50′53″W / 48.92472°N 113.84806°W / 48.92472; -113.84806[1]
Geography
Lewis Range Location in Montana Show map of Montana Lewis Range Location in the United States Show map of the United States Lewis Range Lewis Range (Alberta) Show map of Alberta Lewis Range Lewis Range (Canada) Show map of Canada
Countries	United States and Canada
Province/State	Montana and Alberta
Parent range	Rocky Mountains
Geology
Orogeny	Lewis Overthrust

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 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 10,479 ft (3,194 m).

Geography

The Lewis Range is within

Formed by the Lewis Overthrust beginning 170 million years ago, an enormous slab of Precambrian rocks 3 miles (4.8 km) thick, 50 miles (80 km) wide and 160 miles (260 km) long faulted and slid over newer rocks of the Cretaceous period. In this relatively rare occurrence, older rocks are now positioned above newer ones.^{[citation needed]}

See also

• List of mountains and mountain ranges of Glacier National Park (U.S.)

References

External links

• Glacier National Park. "Lewis Overthrust Fault". Geology. Retrieved 2023-06-07.
• Media related to Lewis Range at Wikimedia Commons