OKEFINOKEE SWAMP 



603 



Mary's and the Altamaha except the Satilla and Little Satilla Rivers. 

 At Camp Cornelia^ where the old drainage ditch of the Suwanee 

 Canal Company cuts through it, this remarkable ridge is about two 

 miles wide and only about forty feet high; and it probably keeps prac- 

 tically the same dimensions for many miles north and south. Its 

 slopes are so gentle as to be scarcely noticeable to a person passing over 

 itj but when viewed from a point a few miles away on one of the 

 straight railroads which cross it it stands out quite conspicuously. 



Inteeioe of Jackson's Bat. 



Trail Eidge, or Okefinokee Eidge, as the Georgia end of it might 

 be called, does not belong to the class of cuestas or inland-facing es- 

 carpments which can be seen in many places in the upper half of the 

 coastal plain, for it slopes equally on both sides and has no stream 

 hugging its inland edge as far as known. Moreover, it is too smooth 

 and too straight to have been formed by erosion. The most reasonable 

 explanation of it would seem to be that it marks a comparatively recent 

 slight flexure of the earth's crust, formed during one of the oscillations 

 which the coastal plain experienced several times during its making. 

 There seems to be a similar though smaller ridge about fifteen miles 

 east of it, but so little is known about that that it could not be mapped 

 at the present time. Mount Pleasant and Waynesville, near the 

 boundary between Wayne and Glynn Counties, are located on the latter 

 ridge, and along its summit was one of the principal roads from 

 Savannah to East Florida a century ago, followed by Bartram and 

 other travelers. 



