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The Cumberland Mountains are part of the Ridge-and-Valley and not the Cumberland Plateau province? In Tennessee, they're part of the Plateau. Is it different in the Central Appalachians? Bms4880 ( talk) 00:58, 26 April 2008 (UTC) reply

Some sources say that the Allegheny Mountains are part of the Allegheny Plateau. Others say that where the Plateau ends, the Mountains begin. Perhaps the same ambiguity prevails where the Cumberlands (P & M) are concerned. Valerius Tygart ( talk) 15:44, 17 October 2008 (UTC) reply

regarding the article section Significant ridges (from north to south) listing barrier ridgelines, I'm curious as to what authority or expertise such ridges were chosen and why others weren't. For example, why aren't Broad Mountain (Pennsylvania), Nesquehoning Ridge, Pisgah Ridge and other parts of the mountain chain where there is a definitive lack of mountain passes save for water gap around the ends of the ridges. Then again, why isn't the Allegheny Ridge itself listed, which is sometimes just referred to as the Allegheny (see gaps of the Allegheny) in many historical references; surely the escarpment of the Allegheny Front which was a significant barrier to even foot travel ought be considered significant. // Fra nkB 05:52, 9 June 2016 (UTC) reply

From beyond the ocean, if the R&V Apps are a succesion of ridges, they are well stated, the comprehensive list would be finished with the passing of time. But, on the valleys, aren't any of them worth mentioning? Are the same as the ones numbered in the map provided? ※ Sobreira ◣◥ ፧ (parlez)⁇﹖ 00:25, 7 January 2022 (UTC) reply