CLIMATE 



VEGETATION 

 & SOIL 



GEOLOGY 



MORPHOLOGY 



GEOLOGY 



MORPHOLOGY 



CLIMATE 



VEGETATION 

 & SOIL 



DELTA 



V 



TIDES 



WAVES 



BASIN 



(40% of Continental U.S.) 



ALLUVIAL VALLEY 



(Mississippi River Drainage 

 Flood Plain) 



DELTA 



RECEIVING BASIN 



(Gulf of Mexico) 



Figure 7. Physical factors influencing the development of the MDPR (from 

 Wright et al. 1974). 



15 



