The Arrington 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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Arrington’s center stands about 710 ft above sea level. Within three miles the land runs from 530 ft to 1,000 ft, a difference of 470 ft: hilly country. The highest named summit within 15 miles is The Priest, about 4,060 ft, 13 miles northwest.
Under the town center the state geologic map shows Layered Quartzofeldspathic Augen Gneiss and Flaser Gneiss (biotite-gneiss), from the Mesoproterozoic, 1 to 1.6 billion years old.
The section below crosses 13 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 10×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Biotite-gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 7 mi of the line.
Metagraywacke. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 4 mi of the line.
Biotite-gneiss. Age: Neoproterozoic, 542 to 1,000 million years old. About 3 mi of the line.
Biotite-gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 3 mi of the line.
Leucocratic-granitic. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 2 mi of the line.
Phyllite, schist. Age: Cambrian, 487 to 542 million years old. 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. 7 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 Arrington reaches Chesapeake Bay and the Atlantic Ocean by way of Bobs Creek, Rucker Run, the Tye and the James: about 220 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Arrington; river miles along the main stem, rounded.
