The flat area S. was the bed of Terry´s mill pond -- the impounded waters of Sugar Cr. Tom Terry (1823-1861) operated the grist mill that stood 800 yds. downstream. It was burned by Federal troops July 29, 1864, & was rebuilt and operated some years after the war.
The considerable area of the pond made it a notable landmark in the 1850´s - 1860´s, & further prominence attached because it is cited in military annals recording the movements of Walker´s & Bate´s divs., Hardee´s corps, [CSA] to the battlefield of July 22, 1864, which indicate that Gen. Walker was killed near the upper end of the mill pond.
GHM 044-52 - Georgia Historical Commission - 1985
Plaque courtesy Lat34North.com.
Original page, with additional info, here.
Photo credit: Byron Hooks of Lat34North.com.