ˌBlue Ridge ˈMountains, the (also the ˌBlue ˈRidge)
the part of the Appalachians (=a group of mountains in the eastern US) that goes from southern Pennsylvania to northern Georgia. When people in the US talk about the Appalachians, they usually mean just the part that is the Blue Ridge Mountains.

[TahlilGaran] Dictionary of Contemporary English ▲