The state Department of Transportation says it has updated its bicycle Web site to provide more information to cyclists. According to them, cyclists in New York can plan trips and research trails from Buffalo to Long Island on a state website. I couldn’t get it to work. Maybe you can.
Visit DOT’s biking map page at at https://www.dot.ny.gov/display/programs/bicycle
For data I know works, you can rely on print copies or pdf electronic copies of local biking guidebooks available at www.footprintpress.com.