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hogback |
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hogback, sharp-crested ridge with steep slopes on both sides, formed by the erosion of steeply tilted rock layers. Hogbacks are commonly formed along the eroded flanks of large, tightly folded anticlines and synclines (see fold fold, in geology, bent or deformed arrangement of stratified rocks. These rocks may be of sedimentary or volcanic origin. Although stratified rocks are normally deposited on the earth's surface in horizontal layers (see stratification ), they are often found inclined ..... Click the link for more information. ). Impressive hogbacks are seen in the foothills east of the Front Range of the Rocky Mts. in Colorado, where they are formed by the vertical or steeply dipping layers of Dakota sandstone. This region forms the intake area for the Dakota artesian system. Hogbacks are also common in the Black Hills of South Dakota where sedimentary rocks were uplifted by the intrusion of Black Hills granite. See cuesta cuesta (kwĕs`tə), asymmetric ridge characterized by a short, steep escarpment on one side, and a long, gentle slope on the other. ..... Click the link for more information. . How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Common Ground Center, a nonprofit organization that aims to strengthen diverse families and communities, has a vegetarian camp on 700 acres near Lewis Creek and the Hogback Mountains in Vermont. The Japanese couldn't see us from their higher positions, so they didn't fire at us as we advanced up a hogback between the mountains the first day," Mr. Topography consists of broad, moderately sloping uplands bordered by the Purgatoire River Canyon on the east, limestone hills on the west, and a basaltic hogback on the south. |
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