18 PHYSIOGRAPHY AXD GEOLOGY OF THE COASTAL PLAIN PROVIA^CE. 



divides the continuous cover of Coastal Plain sediments extends from three 

 to ten miles farther to the west. Geographically, the westward limiting line 

 of the Coastal Plain of Virginia passes through the eastern part of Fairfax, 

 Prince William, Stafford and Spottsylvania counties, the extreme western 

 part of Caroline County, the central part of Hanover, Henrico, and Chester- 

 field counties, the eastern part of Dinwiddie County, the western part of 

 Sussex County, and the eastern part of Greenesville County. 



