The Southern Tier of New York State is the geographical region that includes the counties of New York State west of the Catskill Mountains and along the northern border of Pennsylvania.
Lake Erie lies to the west of the Southern Tier, and the north or bordered by the Niagara region and the Finger Lakes. The region is bordered to the south by the Northern Tier of Pennsylvania, and together these regions are known as the Twin Tiers.
It is largely a rural area full of dairy farms, quaint towns, and deep forests. Numerous small fairs and markets dot the valleys in the summer and the area is a destination for hunters and leaf peepers in the fall. The occasional city hugs the riverbanks, providing modern amenities and urban comforts while struggling to hold on to the small town charm that is typical of the area.
It is considered to be the northernmost reaches of Appalachia. (http://en.wikipedia.org/w...)