International Mountain Bicycling Association

IMBA (International Mountain Bicycling Association) Trail Towns
https://www.imba.com/trail-towns

Marietta, Ohio, is a historic river city in southeastern Ohio known for its scenic setting, historic downtown, and growing outdoor recreation opportunities. Surrounded by the wooded hills of the Appalachian Plateau, Marietta has developed an extensive network of mountain bike and multiuse trails, supported by local volunteers and the River Valley Mountain Bike Association.