Friday, July 11, 2025
/ 2 p.m. - 3 p.m.
River Rock ID
Meeting Place: Sandbar Day Use 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 swimming adventure and identify the various rocks and minerals the Cossatot River consists of! All supplies provided. Dress water ready.
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