Mill Creek Streamway Park is a beautiful linear park with over 17 miles of pedestrian and bicycle trails. It also consists of three miles of equestrian trails and open spaces for leisure pursuits like jogging, picnicking, and nature hiking.

The trail extends from Nelson Island on the Kansas River, south through the cities of Shawnee and Lenexa, and ending in the City of Olathe.

In 2010, JCPRD's Gary L. Haller Trail in Mill Creek Streamway Park was designated by Secretary of the Interior Ken Salazar as a National Recreation Trail (NRT). A regional tourist attraction and a model trail for other communities in the region, it is the first trail in Johnson County to be honored with the NRT designation.