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| Lewis Range | |
|---|---|
 Mt. Cleveland is the highest peak in the Lewis Range | |
| Highest point | |
| Peak | Mount Cleveland, Montana |
| Elevation | 10,479 ft (3,194 m)[1] |
| Listing | |
| Coordinates | 48°55′29″N113°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 Location in Alberta Show map of Alberta Lewis Range Location in Canada Show map of Canada | |
| Countries | United States and Canada |
| Province/State | Montana andAlberta |
| Parent range | Border Ranges[2] |
| Geology | |
| Orogeny | Lewis Overthrust |
TheLewis Range is amountain range located in theRocky Mountains of northernMontana, United States and extreme southernAlberta, Canada. It was formed as a result of theLewis Overthrust, a geologic thrust fault involving the overlying of youngerCretaceous rocks by olderProterozoic rocks. The range is located withinWaterton Lakes National Park inAlberta, Canada andGlacier National Park and theBob Marshall Wilderness Complex inMontana, United States. The highest peak isMount Cleveland at 10,479 ft (3,194 m).
The Lewis Range is withinWaterton Lakes National Park in Canada, and inGlacier National Park and theBob Marshall Wilderness Complex located inFlathead andLewis and Clark National Forests in Montana. TheContinental Divide spans much of the uppermost sections of the range. Major peaks in the range includeMount Cleveland (10,479 ft; 3,194 m), which is the highest peak in the range and in Glacier National Park. Other prominent peaks includeMount Stimson (10,142 ft; 3,091 m),Mount Jackson (10,052 ft; 3,064 m),Mount Siyeh (10,014 ft; 3,052 m),Going to the Sun Mountain, (9,642 ft; 2,939 m) and the isolatedChief Mountain (9,080 ft; 2,770 m). TheChinese Wall in theBob Marshall Wilderness is a 1,000 ft (300 m) high feature that runs for 40 miles (64 km). Major passes includeMarias Pass andLogan Pass which bisects Glacier National Park east to west.
Formed by theLewis Overthrust beginning 170 million years ago, an enormous slab ofPrecambrian 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 theCretaceous period. In this relatively rare occurrence, older rocks are now positioned above newer ones.[citation needed]
Media related toLewis Range at Wikimedia Commons
