The Coalton 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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9° on Nov. 14, 1920, the coldest reading for this week of the year since 1914. Next is 9° in 1933.
Coalton’s center stands about 720 ft above sea level. Within three miles the land runs from 680 ft to 970 ft, a difference of 290 ft: rolling country. The highest named summit within 15 miles is Chimney Rocks, about 1,150 ft, 12 miles west-northwest.
Under the town center the state geologic map shows Allegheny and Pottsville Groups, Undivided (shale, siltstone), from the Carboniferous, 299 to 324 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 45×. 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, siltstone. Age: Carboniferous, 299 to 324 million years old. About 18 mi of the line.
Shale, siltstone, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 5 mi of the line.
Shale, siltstone, mudstone. Age: Carboniferous, 299 to 324 million years old. About 1 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 Coalton reaches the Gulf of America by way of Pigeon Creek, Salt Creek, the Scioto, the Ohio and the Mississippi: about 1,660 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 Coalton; river miles along the main stem, rounded.
Coalton has a hot-summer humid continental climate. Summer afternoons average 82° in July; winter nights fall to about 21° in January. A normal year brings about 21 inches of snow; with the rain, that comes to about 45 inches of water.
On November 14 Coalton normally reaches 52° and falls to 33°. The record high is 75°, in 1931; the record low 9°, in 1986. The most rain on this date, 1.24 in, fell in 2024.
Normals 1991–2020 and records since 1914 at Jackson 3 NW, 6 miles west-southwest, 120 ft higher. NOAA, through RCC-ACIS.
