The Centralia 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.
Sunny
Partly cloudy
Sunny
Sunny
Partly cloudy
Partly cloudy
Partly cloudy
Centralia’s center stands about 890 ft above sea level. Within three miles the land runs from 830 ft to 900 ft, a difference of 70 ft: gently rolling country.
Under the town center the state geologic map shows Marmaton Group (limestone, shale), from the Carboniferous, 299 to 324 million years old.
The section below crosses 4 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.
Shale, sandstone, siltstone. Age: Carboniferous, 299 to 324 million years old. About 9 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 8 mi of the line.
Limestone, shale. Age: Carboniferous, 299 to 324 million years old. About 7 mi of the line.
Limestone, siltstone. Age: Carboniferous, 324 to 359 million years old. About 0.3 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 Centralia reaches the Gulf of America by way of Youngs Creek, Long Branch, the Salt River and the Mississippi: about 1,370 river miles.
Lake on the way: Mark Twain Lake.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Centralia; river miles along the main stem, rounded.
