A ridge is a geological feature that features a continuous elevational crest for some distance. Ridges are usually termed hills or mountains as well, depending on size. There are several main types of ridges:

• Dendritic ridge: In a typical plateau terrain, the stream drainage valleys will leave intervening ridges. These are by far the most common ridges. These ridges usually represent slightly harder rock, but not always -- they are often simply because there were larger joint spaces where the valleys formed, or other chance occurrences. This type of ridge is generally somewhat random in orientation, often changing direction frequently, often with knobs at intervals on the ridge top.

• Stratigraphic ridge: In places such as the Ridge-and-valley Appalachians, very long, very even, very straight ridges are formed due to the fact that they're the uneroded remaining edges of the more resistant strata that were folded laterally. Similar ridges have formed in places such as the Black Hills, where the ridges form concentric circles around the igneous core. Sometimes these ridges are called "hogback ridges".

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Headed up to Jonas Ridge to assess ice storm damage
alhooks13 (Al Hooks) Thu, 31 Dec 2009 13:14:44 -0000
Headed up to Jonas Ridge to assess ice storm damage
Jonas Ridge still iced over: Folks in the Jonas Ridge area are cutting their way out from an ice storm that left fa... http://bit.ly/6QUVjP
MorgantonNews (News Herald) Tue, 29 Dec 2009 00:49:19 -0000
Jonas Ridge still iced over: Folks in the Jonas Ridge area are cutting their way out from an ice storm that left fa... http://bit.ly/6QUVjP
Jonas Ridge Ice Storm 2009 http://post.ly/GIw9
joshcarver (joshcarver) Sun, 27 Dec 2009 02:07:26 -0000
Jonas Ridge Ice Storm 2009 http://post.ly/GIw9

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