Category:Clinker in North Dakota

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This category has only the following subcategory.

Media in category "Clinker in North Dakota"

The following 2 files are in this category, out of 2 total.

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  NPS theodore-roosevelt-geologic-map-north.jpg 3,226 × 1,956; 1.33 MB
  
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  NPS theodore-roosevelt-geologic-map-south.jpg 3,408 × 1,924; 1.71 MB