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Lake Musselshell
The basin that held Pleistocene Lake Musselshell is in the lower (north-flowing) reach of the river. It is underlain mostly by highly erodible Cretaceous Colorado shale, Montana group sandstone, siltstone and shale, and Hell Creek sandstone and shale. The bedrock is gently folded and affected by local faults and joints. There is a sequence of nine terraces and more than 100 glacial boulders. The terraces are older than the erratics as the erratics rest on the terraces.Extent and Timing of Laurentide Glacial Lake Musselshell, Central Montana; Nicole Kristina Davis; Montana State University; Bozeman, Montana; July 2004 Glacial stages Advancing out of Alberta a lobe of the late Wisconsin Laurentide Ice Sheet advanced southeastward into east and central Montana and southwestern Saskatchewan, leaving the Cypress Hills and Boundary Plateau unglaciated. As the Laurentide ice crossed the area of the present day Milk River valley in southern Alberta, it was divided into two lobes by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroleum County, Montana
Petroleum County is a county in the U.S. state of Montana. As of the 2020 census, the population was 496, making it the least populous county in Montana and the eighth-least populous in the United States. Its county seat is Winnett. The county's area was partitioned from Fergus County to become the last of Montana's 56 counties to be organized. History The area was home to Native American tribes of the Crow, Blackfoot, Nez Perce, and Sioux. In 1868 a trading post was established at the mouth of Musselshell River; it was named "Musselshell". Walter John Winnett, a rancher who had been adopted into the Sioux tribe, started a ranch in Montana Territory in 1879. His ranch house (built 1900) became a gathering place for the area. In 1910, he built a store and petitioned for a post office; thus Winnett became an official town. Fort Magginis (built in western Fergus County in 1880) subdued Indian raids in the area, allowing cattle raising to prosper. Gold was also discovered in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cypress Hills (Canada)
The Cypress Hills are a geographical region of hills in southwestern Saskatchewan and southeastern Alberta, Canada. The hills are part of the Missouri Coteau upland. The highest point in the Cypress Hills is at Head of the Mountain in Alberta at . The highest point in Saskatchewan is , in a farmer's field in the Cypress Hills, at . Name The Cypress Hills have been known by a wide number of Indigenous and European names throughout their history. An 1882 Blackfoot–English dictionary written by C. M. Lanning provided the Blackfoot language name , which translates as "striped earth" or "earth over earth". The Cree language name, in use at the same time, is , (spelled in a variety of anglicized forms including "Mun-a-tuh-gow"), sometimes said to mean "beautiful upland" but more accurately referring to "an area to be respected, protected, taken care of and/or taken care with". The Assiniboine language name is . The Gros Ventre language name is ' "pine trees". Early Métis hunters, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Great Falls
Lake Great Falls was a prehistoric proglacial lake which existed in what is now central Montana in the United States between 15,000 BCE and 11,000 BCE.Hill, Christopher L. and Valppu, Seppo H. "Geomorphic Relationships and Paleoenvironmental Context of Glaciers, Fluvial Deposits, and Glacial Lake Great Falls, Montana." ''Current Research in the Pleistocene.'' 14 (1997); Hill, Christopher L. "Pleistocene Lakes Along the Southwest Margin of the Laurentide Ice Sheet." ''Current Research in the Pleistocene.'' 17 (2000); Hill, Christopher L. and Feathers, James K. "Glacial Lake Great Falls and the Late-Wisconsin-Episode Laurentide Ice Margin." ''Current Research in the Pleistocene.'' 19 (2002)Reynolds, Mitchell W. and Brandt, Theodore R. ''Geologic Map of the Canyon Ferry Dam 30' x 60' Quadrangle, West-Central Montana: U.S. Geological Survey Scientific Investigations Map 2860, scale 1:100,000.''Scientific Investigations Map 2860. Washington, D.C.: U.S. Geologic Survey, 2005. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Chouteau
Lake Chouteau was a glacial lake formed during the late Pleistocene along the Teton River. After the Laurentide Ice Sheet retreated, water melting off the glacier accumulated between the Rocky Mountains and the ice sheet. The lake drained along the front of the ice sheet, eastward towards the Judith River and the Missouri River. The maximum advance of the Laurentide Ice Sheet blocked the drainages of north- and east-flowing rivers, forming glacial lakes along the margin of the ice. On the western Montana plains the Shelby lobe blocked the Cutbank_and_Choteau._The_ilk_River,_creating_glacial_Lake_Twin_River._Tributaries_of_the_Marias_River_were_also_blocked_by_the_Shelby_lobe,_leading_to_the_formation_of_glacial_lakes_Lake_Cut_Bank">Cutbank_and_Choteau._The_Loma,_Montana">Loma_sublobe_blocked_the_Missouri_River.html" "title="Loma,_Montana.html" ;"title="Lake_Cut_Bank.html" "title="Marias_River.html" ;"title="ilk River, creating glacial Lake Twin River. Tributaries of the Marias ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Cut Bank
Lake Cut Bank was a glacial lake formed during the late Pleistocene along the Missouri and Sun Rivers. After the Laurentide Ice Sheet retreated, water melting off the glacier accumulated between the Rocky Mountinas and the ice sheet. The lake drained along the front of the ice sheet, eastward towards the Judith River and the Missouri River. The front of the Keewatin ice sheet completely blocked the valley of Cut Bank Creek so that for the ice dam was bordered by the water of an extensive lake, which has been designated glacial Lake Cut Bank. It is defined by the granitic pebbles and boulders on top of the hills southeast of Cut Bank and are present at several places in the basin farther north and west all below . The pebbles were deposited from icebergs floating on the lake. The lake bottom is identified by the laminated silts over the flatter parts of the basin. The silts are up to as seen in some of the coulees. Additionally, stratified sand and gravel are visible in the b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
