The Newton 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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Newton’s center stands about 740 ft above sea level. Within three miles the land runs from 670 ft to 780 ft, a difference of 110 ft: gently rolling country.
Under the town center the state geologic map shows Manistique Formation (dolostone, limestone), from the Silurian, 422 to 445 million years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone. Age: Silurian, 428 to 445 million years old. About 8 mi of the line.
Dolostone, limestone. Age: Silurian, 422 to 445 million years old. About 5 mi of the line.
Dolostone. Age: Silurian, 428 to 445 million years old. About 4 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 Newton reaches Lake Michigan by way of Point Patterson Creek: about 5 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Newton; river miles along the main stem, rounded.
