Cattaraugus County

Cattaraugus County is a county located in the U.S. state of New York. As of the 2010 census, the population was 80,317. The county seat is Little Valley.

Cattaraugus County is in the southwestern part of the state, immediately north of the Pennsylvania border. The southern part of Cattaraugus County is the only area of western New York that was not covered by the last ice age glaciation and is noticeably more rugged than neighboring areas that had peaks rounded and valleys filled by the glacier. The entire area is actually a dissected plateau of Pennsylvanian and Mississippian age, but appears mountainous to the casual observer. The plateau is an extension of the Allegany Plateau from nearby Pennsylvania. Southern Cattaraugus County is part of the same oil field, and petroleum was formerly a resource of the area. It is now mostly played out, but natural gas continues to be extracted.

http://en.wikipedia.org/wiki/Cattaraugus_County,_New_York

Olean

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Ortho Olean

Olean is the largest city in Cattaraugus County and serves as its financial, business, transportation and entertainment center. It is one of the principal cities of the Southern Tier region of New York. It's population is 13,711 and is bordered by the Allegheny River to the south and Interstate 86, the Southern Tier Expressway to the north. The Olean Creek joins the Allegheny River in the city, and the hills surrounding the city are historical centers for oil production, although most of the wells are just stripper wells nowadays, producing a few barrels a day.