48°50′11″N 113°39′14″W / 48.8363690°N 113.6539971°W / 48.8363690; -113.6539971
6-749: Appekunny Formation is a thick series of rock strata located in the Lewis Range within Glacier National Park , in the U.S. state of Montana . The formation is primarily mudstone and siltstone deposited in a shallow sea during the Proterozoic . Not far from the eastern entrance to the Going-to-the-Sun Road at St. Mary, Montana , the formation can be easily seen on the slopes of Singleshot Mountain . The Appekunny Formation contains bedding structures which may include
12-672: 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
18-522: The Bob Marshall Wilderness is a 1,000 ft (300 m) high feature that runs for 40 miles (64 km). Major passes include Marias Pass and Logan Pass which bisects Glacier National Park east to west. 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
24-722: The Bob Marshall Wilderness Complex in Montana , United States. The highest peak is Mount Cleveland at 10,479 ft (3,194 m). The Lewis Range is within Waterton Lakes National Park in Canada, and in Glacier National Park and the Bob Marshall Wilderness Complex located in Flathead and Lewis and Clark National Forests in Montana. The Continental Divide spans much of the uppermost sections of
30-614: The range. Major peaks in the range include Mount Cleveland (10,479 ft; 3,194 m), which is the highest peak in the range and in Glacier National Park. Other prominent peaks include Mount 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 isolated Chief Mountain (9,080 ft; 2,770 m). The Chinese Wall in
36-467: The remains of the oldest metazoan (animal) on Earth known by the species name Horodyskia moniliformis . The Appekunny Formation is named after Apikuni Mountain and averages 1,970 feet (600 m) thick. The rock strata have been dated at between 1.2–1.4 billion years old. This article about a specific stratigraphic formation in Montana is a stub . You can help Misplaced Pages by expanding it . Lewis Range The Lewis Range
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