A NATIONAL PLAN FOR AMERICAN FORESTRY 



341 



State many of the State-wide statistics later quoted, this report will 

 make little or no reference to Maryland, and treats South Carolina 

 as a unit. 



CLIMATE AND PHYSIOGRAPHY 



The region is one of abundant rainfall 40 to 50 inches annually at 

 most points. A few valleys at the head of the Potomac River receive 



NORTHEASTERN 



DRAINAGES 



GULF 



DRAINAGES 



DRAINAGE 

 BASINS 



RELATIVE INFLUENCE OF FORESTS 

 ON WATERSHEDS 



HHJH MAJOR INFLUENCE 



MODERATE INFLUENCE 

 W/W'A SLIGHT INFLUENCE 



(T) POTOMAC RIVER 



(|) JAM ES-ROANOKE RIVERS 



(3) CAPE FEAR-NEUSE RIVERS 



@ PEEDEE RIVER 



(f) SANTEE RIVER 



FIGURE 4. South Atlantic drainages. 



less than 35 inches of rainfall a year, and in South Carolina adjacent 

 to the zone of highest precipitation in the eastern United States, the 

 Blue Ridge receives an annual rainfall of 65 inches. Although there 

 are no well-marked wet and dry seasons, rainfall is less equably 

 distributed throughout the year than in the northeastern United 



