Scientific Investigations Map 2940
Pacific NW Geologic Mapping Project
Geologic maps of the North Cascades
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.
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Knmg
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Young rocks and deposits
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Older rocks west
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Older rocks east
