The Tannersville 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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Tannersville’s center stands about 1,920 ft above sea level. Within three miles the land runs from 1,700 ft to 3,120 ft, a difference of 1,420 ft: steep hill country. The highest named summit within 15 miles is Hunter Mountain, about 4,040 ft, 5 miles west-southwest.
Under the town center the state geologic map shows Oneonta Formation (shale), from the Middle Devonian to Late Devonian, 359 to 394 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 5×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale. Age: Middle Devonian to Late Devonian, 359 to 394 million years old. About 9 mi of the line.
Sandstone, conglomerate, shale. Age: Late Devonian, 359 to 384 million years old. About 6 mi of the line.
Shale, sandstone. Age: Middle Devonian, 384 to 394 million years old. About 5 mi of the line.
Shale, sandstone, conglomerate. Age: Late Devonian, 359 to 384 million years old. About 4 mi of the line.
Sandstone, shale. Age: Middle Devonian, 384 to 388 million years old. About 0.7 mi of the line.
Sandstone, shale. Age: Middle Devonian, 384 to 394 million years old. About 0.5 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 Tannersville reaches New York Harbor and the Atlantic Ocean by way of Gooseberry Creek, Schoharie Creek, the Mohawk and the Hudson: about 290 river miles.
160 miles of the trip are on the Hudson.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Tannersville; river miles along the main stem, rounded.
