The Greenville 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.
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Greenville’s center stands about 860 ft above sea level. Within three miles the land runs from 750 ft to 960 ft, a difference of 210 ft: rolling country. The highest named summit within 15 miles is Dowdell Knob, about 1,420 ft, 13 miles south.
Under the town center the state geologic map shows Granite undifferentiated, from the Precambrian to Paleozoic.
The section below crosses 6 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 11 mi of the line.
Granite. Age: Precambrian to Paleozoic. About 9 mi of the line.
Mica-schist. Age: Precambrian to Paleozoic. About 2 mi of the line.
Age: Precambrian to Paleozoic. About 2 mi of the line.
Biotite-gneiss. Age: Precambrian to Paleozoic. About 0.9 mi of the line.
Hornblende-gneiss. Age: Precambrian to Paleozoic. About 0.5 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
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 Greenville reaches the Gulf of America by way of Kennel Creek, Walnut Creek, Red Oak Creek, the Flint and the Apalachicola: about 400 river miles.
280 miles of the trip are on the Flint.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Greenville; river miles along the main stem, rounded.
