DOMINICAN REPUBLIC 

 Geological Survey 



Memoirs, Vol. I, Pl. XVIII 



A. SANDY SHALE AND SANDSTONE OF THE YAQUE GROUP ON RIO YAQUE DEL SUR AT 

 CEOSSING OF AZUA-SAN JUAN ROAD. 



B. VIEW NORTHWARD UP THE VALLEY OF RIO YAQUE DEL SUR FROM THE VICINITY 



OF BOCA MULA. 

 The distant hilla are capped with basaltic lava. 



