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Pacific NW Geologic Mapping Project

Geologic maps of the North Cascades

QTcc-3. Hannegan caldera ring fault separates beds of rhyolite tuff (QTcc) on left from Shuksan Greenschist (Kes) on right. View east across upper Crystal Creek [MBnw].
Other photos that show unit QTcc:

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Photo Indices: Captions (Additional photos home) | Map | Young rocks and deposits | Older rocks west | Older rocks east