The 16.9-mile Polly Ann Trail takes you on a ride through rural northern Oakland County from Orion Township Park to the Lapeer County line.
The trail was built on the abandoned Pontiac, Oxford & Northern Railroad that originally ran from Pontiac to Caseville. The trail's name comes from the dubious nickname for the PO&N Railroad, which was never profitable and rarely arrived on time.
The trail passes through a mix of wetlands and suburban neighborhoods south of Oxford on a hard surface of finely screened and compacted limestone. Through the city of Oxford, the trail is paved with asphalt and features a bridge over Lapeer Road (M-24). North of Oxford, the trail travels on a limestone surface through mostly wooded terrain on its way to Leonard.
At Bordman Road, the trail crosses into Lapeer County where the trail surface is currently undeveloped. Equestrian use is permitted from Oxford to Bordman Road.