The Chamois 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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5.74 inches of rain fell in two days, the most for this week of the year since records began in 1962. The next wettest, 2.60 inches, fell in 1985.
Chamois’s center stands about 540 ft above sea level. Within three miles the land runs from 500 ft to 860 ft, a difference of 360 ft: rolling country.
Under the town center the state geologic map shows Smithville Dolomite, Powell Dolomite, Cotter Dolomite, Jefferson City Dolomite (dolostone), from the Early Ordovician, 471 to 487 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 43×. 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, limestone, sandstone. Age: Carboniferous, 299 to 324 million years old. About 9 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 5 mi of the line.
Shale, sandstone, siltstone. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Clay, silt, sand. Age: Holocene, less than 12,000 years old. About 3 mi of the line.
Limestone, sandstone. Age: Early Devonian to Late Devonian, 359 to 422 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 Chamois reaches the Gulf of America by way of Dooling Creek, the Missouri and the Mississippi: about 1,280 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Chamois; river miles along the main stem, rounded.
Chamois has a hot-summer humid continental climate. Summer afternoons average 88° in July; winter nights fall to about 20° in January. A normal year brings about 10 inches of snow; with the rain, that comes to about 44 inches of water.
On November 14 Chamois normally reaches 56° and falls to 34°. The record high is 80°, in 1999; the record low 6°, in 1986. The most rain on this date, 1.60 in, fell in 1985.
Normals 1991–2020 and records since 1962 at Freedom, 15 miles south-southeast, 260 ft higher. NOAA, through RCC-ACIS.
