The Chester 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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Chester’s center stands about 1,280 ft above sea level. Within three miles the land runs from 860 ft to 1,620 ft, a difference of 760 ft: hilly country. The highest named summit within 15 miles is Gore Mountain, about 3,600 ft, 9 miles west.
Under the town center the state geologic map shows Biotite and/or hornblende granite gneiss, from the Mesoproterozoic, 1 to 1.6 billion 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 9×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Metasedimentary, gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 6 mi of the line.
Metasedimentary, migmatite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 6 mi of the line.
Charnockite, gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 5 mi of the line.
Gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 5 mi of the line.
Metaanorthosite. Age: Mesoproterozoic, 1 to 1.6 billion 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.
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 Chester reaches New York Harbor and the Atlantic Ocean by way of Chester Creek, the Schroon and the Hudson: about 270 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Chester; river miles along the main stem, rounded.
