The Winchester 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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Winchester’s center stands about 1,670 ft above sea level. Within three miles the land runs from 1,610 ft to 1,770 ft, a difference of 160 ft: gently rolling country.
Under the town center the state geologic map shows Menominee Group; Blair Creek Formation (basalt), from the Paleoproterozoic, 1.6 to 2.5 billion years old.
The section below crosses 7 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.
Metagraywacke. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 6 mi of the line.
Basalt. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 4 mi of the line.
Gneiss, amphibolite. Age: Paleoarchean, 3.2 to 3.6 billion years old. About 4 mi of the line.
Gneiss, amphibolite. Age: Neoarchean, 2.5 to 2.8 billion years old. About 4 mi of the line.
Granodiorite, granite. Age: Mesoarchean to Neoarchean, 2.6 to 2.9 billion years old. About 3 mi of the line.
Granite, granodiorite. Age: Mesoarchean to Neoarchean, 2.6 to 2.9 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. 1 smaller unit along the line are not listed.
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 Winchester reaches the Gulf of America by way of the Turtle, the Flambeau, the Chippewa and the Mississippi: about 2,010 river miles.
Lakes on the way: Lipp Lake, Lake Wissota and Holcombe Flowage.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Winchester; river miles along the main stem, rounded.
