
            
            By: magic-gigapans
            
              Image: Robin Rohrback, Mid-Atlantic Geo-Image Collection
                
            
            
              License:
                 Creative Commons Non Commercial ⧉
              
            
          
            Uploaded: 30 Apr 2020
            Last Updated: 18 May 2020
          
              1.92 gigapixels
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Cross-bedded quartzite from the Proterozoic-aged Grinnell Formation exposed in the vicinity of Glacier National Park, Montana.