text: Maps of the St. Marks Headwaters Greenway show the St. Marks river remaining within its borders at this point, and they also show this western edge as a straight line.  The border obviously cannot include the various houses and a church on Benjamin Chaires Road.  The river is mapped where the USGS topo map says it is.  It is not visible in the satellite photos.  If anyone has any wise ideas how to correct this conflict, go for it.