The A660 is a major road in West Yorkshire, England that runs from Leeds to Burley-in-Wharfedale where it meets the A65. (The A65 also starts in Leeds and runs parallel to, and south of, the A660. It continues to Ilkley, Skipton, Settle and Kendal as a main trans-Pennine route.) The A660 is approximately 10mi long, and crosses the watershed from Airedale to lower Wharfedale. For most of its length the road is in the metropolitan district of the City of Leeds; the last 0.4mi is in City of Bradford district.