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Pacific NW Geologic Mapping Project

Geologic maps of the North Cascades

Kt-5. Close view of magmatic layering in hornblende gabbro of Riddle Peaks pluton (Kt). Outcrop at head of Hilgard Creek, north of Holden [Tsw].
Other photos that show unit Kt:

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