The Forsyth plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.
Forsyth’s center stands about 680 ft above sea level. Within three miles the land runs from 530 ft to 720 ft, a difference of 190 ft: gently rolling country. The highest named summit within 15 miles is Hog Mountain, about 1,020 ft, 12 miles west.
Under the town center the state geologic map shows Mica Schist/ Gneiss/ Amphibolite (gneiss, mica-schist, amphibolite), from the Precambrian to Paleozoic.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 38×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Gneiss, mica-schist, amphibolite. Age: Precambrian to Paleozoic. About 13 mi of the line.
Hornblende-gneiss, amphibolite. Age: Precambrian to Paleozoic. About 6 mi of the line.
Gneiss, amphibolite. Age: Precambrian to Paleozoic. About 2 mi of the line.
Biotite-gneiss. Age: Precambrian to Paleozoic. About 1 mi of the line.
Gneiss. Age: Precambrian to Paleozoic. About 0.8 mi of the line.
Gneiss. Age: Precambrian to Paleozoic. About 0.6 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit along the line are not listed.
Heights from Copernicus GLO-90 (a surface model: it includes buildings and tree canopy); summits from USGS GNIS; rivers from USGS NHDPlus HR; rock from the USGS State Geologic Map Compilation.
A raindrop that lands in Forsyth reaches the Atlantic Ocean by way of Town Creek, Rum Creek, the Ocmulgee and the Altamaha: about 360 river miles.
210 miles of the trip are on the Ocmulgee.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Forsyth; river miles along the main stem, rounded.