The Manchester 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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Manchester’s center stands about 880 ft above sea level. Within three miles the land runs from 760 ft to 1,170 ft, a difference of 410 ft: hilly country. The highest named summit within 15 miles is Dowdell Knob, about 1,420 ft, 7 miles west.
Under the town center the state geologic map shows Mica Schist (mica-schist), 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 26×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Age: Precambrian to Paleozoic. About 8 mi of the line.
Mica-schist. Age: Precambrian to Paleozoic. About 7 mi of the line.
Biotite-gneiss. Age: Precambrian to Paleozoic. About 3 mi of the line.
Gneiss. Age: Precambrian to Paleozoic. About 2 mi of the line.
Age: Precambrian to Paleozoic. About 2 mi of the line.
Mylonite. Age: Precambrian to Paleozoic. About 1 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 Manchester reaches the Gulf of America by way of Pigeon Creek, the Flint and the Apalachicola: about 380 river miles.
260 miles of the trip are on the Flint.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Manchester; river miles along the main stem, rounded.
