The Whitneyville 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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Whitneyville’s center stands about 240 ft above sea level. Within three miles the land runs from 50 ft to 350 ft, a difference of 300 ft: rolling country. The highest named summit within 15 miles is Peaked Mountain, about 540 ft, 8 miles west.
Under the town center the state geologic map shows Devonian granite, from the Devonian, 359 to 422 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 41×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Granite. Age: Devonian, 359 to 422 million years old. About 10 mi of the line.
Age: Devonian, 359 to 422 million years old. About 5 mi of the line.
Granite. Age: Devonian, 359 to 422 million years old. About 4 mi of the line.
Mafic-volcanic, felsic-volcanic. Age: Silurian to Devonian, 359 to 445 million years old. About 1 mi of the line.
Basalt. Age: Devonian, 359 to 422 million years old. About 0.6 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 Whitneyville reaches the Atlantic Ocean by way of the Machias: about 9 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Whitneyville; river miles along the main stem, rounded.
