State Parks . Heights USA is Sportsmen's Park, which is operated by the Washington State Parks and Recreation Commission. The park occupies 250 acres along the Yakima River, from Birchfield Road to the Terrace Heights Bridge. The entrance is at the intersection of Keys Road and Gun Club Road. Approximately 40 acres of the site have been developed.
Facilities includes both a camping area and a day use area.
Traffic counts in August average 400 to 500 cars per day, with 1,200 on Sundays. There is a 10-day stay limit. Local residents are the primary users of day use areas, which include three group picnic areas plus numerous scattered picnic tables with barbecue braziers. The group picnic sites are covered shelters with water and electricity. They can be used free of charge if not already occupied, or reserved for a fee plus damage deposit.