1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     37. Swansea.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     37. Swansea.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     42. Brecon, NE Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     42. Brecon, NE Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     42. Fforest Fawr (Geopark), Brecon, SW Q
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     42. Fforest Fawr (Geopark), Brecon, SW Q
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     56. Knighton, Radnor, NE Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     56. Knighton, Radnor, NE Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     56. Rhayader, Radnor, NW Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     56. Rhayader, Radnor, NW Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     56. Bilth, Radnor, SW Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     56. Bilth, Radnor, SW Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     60. Montgomery, SE Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     60. Montgomery, SE Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     60. Llanidloes, Montgomery, SW Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     60. Llanidloes, Montgomery, SW Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     76. Bardsey Island, N Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     76. Bardsey Island, N Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     76. Bardsey Island, S Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     76. Bardsey Island, S Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     79. Denbigh, SE Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     79. Denbigh, SE Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         | 
      
      
    
    
      
      
      
            
      
        
      
        
          
          
          
          
          
          
           
          
          
          
            
            
              
                
                
                   
                     
                     1850
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
              
                
                
                   
                     
                     79. Denbigh, SW Quad.
                     
                    
                 
              
                
                
                   
                     
                     Geologic Atlas
                     
                    
                 
              
                
                
              
                
                
              
                
                
                   
                     
                     79. Denbigh, SW Quad.
                     
                    
                 
              
                
                
              
                
                
              
                
                
              
            
            
            
            
          
         |