Catskill Mountains

The Catskill Mountains, also known as the Catskills, are part of the larger Appalachian Mountains. They are in southeastern New York. The Catskills are generally defined as those areas close to or within the borders of the Catskill Park, a forest preserve forever protected from many forms of development under New York state law.
The Catskills form the northeastern end of the Allegheny Plateau (also known as the Appalachian Plateau).