The Warrenton 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.
Sunny
Mostly sunny
Mostly sunny
Sunny
Sunny
Mostly sunny
Mostly sunny
Warrenton’s center stands about 500 ft above sea level. Within three miles the land runs from 430 ft to 620 ft, a difference of 190 ft: gently rolling country.
Under the town center the state geologic map shows Granitic Gneiss undifferentiated, from the Precambrian to Paleozoic.
The section below crosses 12 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. 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. Age: Precambrian to Paleozoic. About 6 mi of the line.
Granite. Age: Precambrian to Paleozoic. About 4 mi of the line.
Sand. Age: Eocene, 34 to 56 million years old. About 3 mi of the line.
Mica-schist. Age: Precambrian to Paleozoic. About 2 mi of the line.
Argillite, phyllite. Age: Precambrian to Paleozoic. About 2 mi of the line.
Phyllite, argillite, mica-schist. Age: Precambrian to Paleozoic. About 2 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 6 smaller units 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 Warrenton reaches the Atlantic Ocean by way of Goldens Creek, Rocky Comfort Creek and the Ogeechee: about 230 river miles.
190 miles of the trip are on the Ogeechee.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Warrenton; river miles along the main stem, rounded.
