The Chuck Huckelberry Loop is a system of paved, shared-use paths and short segments of buffered bike lanes connecting the Cañada del Oro, Rillito, Santa Cruz, and Pantano River Parks with the Julian Wash and Harrison Road Greenway. More than 136 miles of paved pathways and bike lanes have already been completed with additional trails to come.
The Loop extends through unincorporated Pima County, Marana, Oro Valley, Tucson, and South Tucson. The connections are the result of Pima County's cooperative partnerships with these jurisdictions. The Loop connects parks, trailheads, bus and bike routes, workplaces, restaurants, schools, hotels and motels, shopping areas, and entertainment venues. Visitors and Pima County residents can enjoy the Loop on foot, bikes, skates, and horses.
The Loop become “a real loop” in January 2018 when the County completed a connection on the south bank of the Rillito River Park between Glenn Street and Tanque Verde Road that connected the Rillito to the Pantano River Park. Connecting the Santa Cruz River Park with the Rillito, Pantano, Harrison Greenway and Julian Wash makes a complete circuit of 53.9 miles.