USGS home Scientific Investigations Map 2940 

Pacific NW Geologic Mapping Project

Geologic maps of the North Cascades

Ktf-3. Load casts on bottom of overturned sandstone bed in marine Three Fools Sequence of Haugerud and others (2002) exposed on ridge crest (northwest of Elbow Basin [RMnw]. Large black argillite rip-up clast in lower left corner.
Other photos that show unit Ktf:

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