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 foldfold,
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 or curved
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). 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 cuestacuesta
, asymmetric ridge characterized by a short, steep escarpment on one side, and a long, gentle slope on the other. The steep side exposes the edge of erosion-resistant rock layers that form the cuestas.
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.
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hogback

[′häg‚bak]
(geology)
Alternate ridges and ravines in certain areas of mountains, caused by erosive action of mountain torrents.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Holes 1, 2, 17 and 18 are out of sight on the east side of the hogback, where the clubhouse and pro shop will be located.
One exception is Valley Curtain in Rifle, Colorado, between Grand Junction and Glenwood Spring, where a group of workers fastened an orange curtain made of woven nylon fabric in the Grand Hogback Mountain Range.
The earliest pieces in the museum are Viking, including a Viking "hogback stone", now housed in the attached church, and other pre-Norman items including an early Saxon font.
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 Mayor's Cup is a rugged 200-mile cross-country race along Hogback Mountain and Valdez Glacier Flats, and the Mountain Man race is the state's premier hill climb, with prizes totaling more than $40,000.
The fairway is a hogback, sloping sharply down on both sides and difficult to hold with a drive.
* Highways that highlight recreation (the Chain of Lakes along I-80 in Nebraska), outstanding geography (I-70 through Colorado's Hogback and I-68 through Sideling Hill in Maryland, I-15 through the Virgin River Gorge in Arizona and Utah, I-10 across the Atchafalaya Swamp in Louisiana), and coexistence with endangered species (panther crossings on I-75/Alligator Alley in Florida).
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.
Chiriqui: Las Cumbres, hogback ridge N of Quebrada Iglesia, near town of Cerro Punta, 22 July 1971, T.
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.
1:50 "Hogback Ridge, McHenry County, ND: revelations from a trench," Trent D.
Mac's great moment came when the Piedmont got into the radio business and erected a 300-foot tower out on Hogback Mountain.