Home » About Transportation Major Roadways: Interstate 86 runs east/west through our region. U.S. Route 219 runs north/south through our region. Airports: Olean Municipal Airport is located in Ischua. Dayton Airport is located in Dayton. Great Valley Airport is located in Great Valley. Bussing: The City of Olean has busing that covers the entire city. The Village of Ellicottville has busing that also travels to the Seneca-Niagara Casino, located in Salamanca. ‹ Newspapers & Magazines up Printer-friendly version Email this page Travel Guide It's a full 56-page comprehensive guide, highlighting the activities and attractions in our County. Request the Enchanted Mountains guide to be snail mailed to you for FREE!