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The Yukon-Koyukuk Region

Introduction Geology Hollick Localities Spicer Localities Locality Relationships Wider Correlations  

 

Geological Map

Geological map of the Yukon-Koyukuk Basin area extracted from the whole Alaska map of Wilson et al. (2015).

Geological map of the Yukon-Koyukuk area

Key to Alaskan Cretaceous rocks

From Wilson et al. (2015). Note that not all the rock units below are present in the map above, and not all units in the map are present in the key.

Key of Cretaceous rock units in Alaska