Friday, July 04, 2025 / 2 p.m. - 3 p.m.

River Rock ID

Meeting Place: Brushy Creek Recreation Area
2:00 pm - 3:00 pm
The Cossatot River is lined with sand, pebbles and large boulders. Have you ever wondered what kind of rocks and minerals they were made of? Join park interpreters on a snorkeling adventure and identify the various rocks and minerals in the Cossatot River!