National Geologic Map Database
General Information
- Title: Preliminary geologic map and cross sections of the upper Clackamas and North Santiam Rivers area, northern Oregon, Cascade Range
- Author(s): Hammond, P.E., Geyer, K.M., and Anderson, J.L.
- Publishing Organization: Geo-graphics
- Publication Date: 1982
- Map Scale: 1:62,500
- Cross Section: None
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Geologic units referred to in Geolex
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.