
            
            By: magic-gigapans
            
              Image: Callan Bentley, Mid-Atlantic Geo-Image Collection
                
            
            
              License:
                 Creative Commons Non Commercial ⧉
              
            
          
            Uploaded: 5 May 2020
            Last Updated: 3 Jun 2020
          
              569 megapixels
            41,196 x 13,812 pixels
            137.3 in X 46.0 in at 300dpi
            
              264 pixels per inch
          
Exposure of clast-rich Sykesville Formation metasedimentary rock in the westernmost point of Washington, DC, on the banks of the Potomac River, upstream from Chain Bridge and downstream of Little Falls Dam and Dalecarlia Spillway. Main joint face imaged here strikes 075° and dips at 38° to the southeast.