USGS home Scientific Investigations Map 2940 

Knmg-1. Late Cretaceous Nason Ridge Migmatitic Gneiss (Knmg) of the Nason terrane exposed on the north ridge of Black Mountain [SRse], southwest of Glacier Peak.
Other photos that show unit Knmg:



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