> ## Content Index
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# Battle of the Batholiths at Washington Pass
- URL: https://www.cascadepbs.org/show/nick-rocks/episode/battle-of-the-batholiths-at-washington-pass-4ninnk/
- Published: 2025-01-22T18:30:56.000Z
- Updated: 2025-12-12T19:29:50.000Z
- Description: Two unique types of granite formed far from each other before colliding in the Cascades.
- Author: Cascade PBS Staff
- Tags: Nick on the Rocks, Season 6, Episode 8, #ZZZ_Episode_c2126d36-6b24-404f-8342-e35a9d20adf4, #episode, #ZZZ_Show_fb43f9d5-44f4-411a-854a-568025965642, #v1.16

Towering walls of granite stand sentinel over Highway 20 at Washington Pass deep in the North Cascades. The surrounding peaks are made of two distinct types of granite that formed far away from each other before dramatically colliding in the Northwest.