The Nashville 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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Nashville’s center stands about 590 ft above sea level. Within three miles the land runs from 560 ft to 860 ft, a difference of 300 ft: rolling country. The highest named summit within 15 miles is Orcutt Mountain, about 1,640 ft, 10 miles west-southwest.
Under the town center the state geologic map shows Devonian Seboomook Formation (mudstone, sandstone), from the Early Devonian, 410 to 414 million years old.
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 18×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Mudstone, sandstone. Age: Early Devonian, 410 to 414 million years old. About 12 mi of the line.
Sandstone, conglomerate. Age: Silurian, 422 to 445 million years old. About 6 mi of the line.
Basalt. Age: Ordovician, 445 to 487 million years old. About 4 mi of the line.
Mudstone, sandstone. Age: Silurian, 422 to 445 million years old. About 0.9 mi of the line.
Sandstone, mudstone. Age: Silurian to Devonian, 359 to 445 million years old. About 0.7 mi of the line.
Conglomerate. Age: Silurian, 422 to 445 million years old. About 0.7 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 Nashville reaches the Bay of Fundy and the Atlantic Ocean by way of the Little Machias, the Aroostook and the Saint John: about 260 river miles.
190 miles of the trip are on the Saint John.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Nashville; river miles along the main stem, rounded.
