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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hogback

[′häg‚bak]
(geology)
Alternate ridges and ravines in certain areas of mountains, caused by erosive action of mountain torrents.
References in periodicals archive ?
Josh even wants to go up to Hogback Hill on Halloween night to investigate
Price includes return flight from Heathrow, six nights accommodation on room only basis, morning visit to Manhattan, full day visit to Boston, full day tour through Vermont, Woodstock and Hogback Mountain.
Here On this hogback I found an owl's White skull, and The delicate Piping of bones.
But shutting down would have been an unthinkable slap to Bandimere's father, who started hosting Friday night drag races on a barren strip of land near the Dakota Hogback in the 1950s.
It is located in the headwaters of Hogback Run, a cold water fishery and tributary to the West Branch.
As I watched through binoculars, the buck chased a doe across a hogback a half-mile away, circled a hill, and vanished into a hollow choked with brush.
We've got a long day ahead, plus a steep hill, Murphy's Hogback, to go over.
The shallow green has a hogback in the back left portion.
Previous workers examining Hogback Ridge, the largest of these ridges in ND, found gravelly sand, silt, and clay (till deposits), bedded sands and silts (lacustrine deposits), bedded sand and gravel (fluvial deposits) (1,2,3,4).
This site is a short grass prairie--pinyon-juniper community (13) with topographic features consisting of broad, moderately sloping uplands bordered by the Purgatoire River Canyon on the east, limestone hills on the west, and an extruded basalt hogback ridge on the south.
By afternoon, the clash of colors is muted by the long shadows of Hogback Ridge.
We were hiking the shoreline late that afternoon when a lone bull wandered across a hogback and dropped his head to feed.