The West Louisville 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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West Louisville’s center stands about 450 ft above sea level. Within three miles the land runs from 380 ft to 510 ft, a difference of 130 ft: gently rolling country. The highest named summit within 15 miles is Steamport Hill, about 640 ft, 14 miles west-southwest.
Under the town center the state geologic map shows Carbondale Formation (siltstone), from the Carboniferous, 299 to 324 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 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.
Sand, silt. Age: Pleistocene to Holocene, less than 2.6 million years old. About 10 mi of the line.
Siltstone. Age: Carboniferous, 299 to 324 million years old. About 7 mi of the line.
Siltstone. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Siltstone. Age: Carboniferous, 299 to 324 million years old. About 2 mi of the line.
Shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 0.7 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 West Louisville reaches the Gulf of America by way of Crooked Creek, Panther Creek, the Green River, the Ohio and the Mississippi: about 1,200 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of West Louisville; river miles along the main stem, rounded.
