Wallkill Valley

It is composed of rolling hills, plains, and swamps (including the Black Dirt Region) surrounding the Wallkill River.

In a broader sense, the Wallkill Valley is part of the Ridge-and-Valley physiographic province of the Appalachian Mountains, while the Catskills further to the north and west are part of the Appalachian Plateau.

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Shaded relief map of the northern Wallkill Valley region