Riley Park is a centerpiece in Greenfield and it does not disappoint for downhill sledding. This huge park offers 3 separate hills for your kiddos to enjoy. The largest hill has a shelter near it, so you can hang out or warm up while your kids are having a ball. The park also offers playgrounds, beautiful hiking trails and a huge open space to build a snowman or just run around. It is a good time for the entire family!