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# Waterville Plateau
- URL: https://www.cascadepbs.org/show/nick-rocks/episode/waterville-plateau-3mlbdz/
- Published: 2024-03-30T01:00:30.000Z
- Updated: 2026-04-14T19:30:32.000Z
- Description: Northern Withrow: Enigmatic basalt boulders tell the tale of a massive ancient glacier.
- Author: Cascade PBS Staff
- Tags: Nick on the Rocks, Season 5, Episode 8, #ZZZ_Episode_4c687ebe-0b84-4186-9cb3-5a68fe403245, #episode, #ZZZ_Show_fb43f9d5-44f4-411a-854a-568025965642, #v1.16

Just north of Withrow, Washington, the pancake-flat farms and fields are dotted by massive mysterious basalt boulders. These rocks, picked up and moved by ice sheets in the last Ice Age, help Nick visualize the moraine of a giant bygone glacier.