Hillsdale State Park is a state park of Kansas in the United States. Located on Fossil Lake, it was established in 1961 and has an area of 1,818 acres (7.36km2). The lake itself is about one mile (1.6km) long with an average width of approximately 200 yards (190m), but can vary by as much as 400 yards (370m). It lies at an elevation of between 533 and 619 feet (163 and 189m).
There are 50 miles (80km) of developed trails within the park that offer a variety of skill levels from easy to moderate terrain. In addition there are 12 miles (19km) of unpaved equestrian trails open to horses and riders. Fossil Lake also supports swimming and other water sports. A marina located inside the park contains over 100 power and sail boats along with paddleboats and kayaks for rent.
Facilities available include modern restrooms, showers, picnic sites, playground areas, campsites for large groups, cabins, RV sites with hookups, tent campgrounds, primitive group-camping area, horse stables, miniature golf course, pool hall, and nature center/gift shop. The Hillsdale Nature Center features natural history exhibits, a bird observation room, a fossil collection, and information on local plants and animals. Visitors can also enjoy a fireplace and couches in the spacious lobby. The gift shop sells items made from natural products, American Indian jewelry, arrowheads, pottery and more.
To help fund a backlog of deferred maintenance and park improvements, the state implemented an entrance fee for this park. The fees, charged per vehicle, start at $10 per day for a single-day or $8 for residents with an Oklahoma license plate or Oklahoma tribal plate. Fees are waived for honorably discharged veterans and Oklahoma residents age 62 & older and their spouses. Passes good for three days or a week are also available; annual passes good at all 22 state parks charging fees are offered at a cost of $75 for out-of-state visitors or $60 for Oklahoma residents.
Hillsdale State Park offers many different opportunities for outdoors enthusiasts such as:
- mountain biking
- wildlife watching