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 and it's FREE!! View the visitor's guide online or request that the Enchanted Mountains guide be snail mailed to you for FREE!