The Seligman 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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81° on Nov. 12, 1989, the hottest reading for this week of the year since 1911. Next is 80° in 1911.
Seligman’s center stands about 1,540 ft above sea level. Within three miles the land runs from 1,310 ft to 1,640 ft, a difference of 330 ft: rolling country. The highest named summit within 15 miles is Whitney Mountain, about 1,820 ft, 9 miles south.
Under the town center the state geologic map shows Osagean Series (limestone), from the Carboniferous, 324 to 359 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 26×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 10 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 6 mi of the line.
Limestone, shale, sandstone. Age: Carboniferous, 324 to 359 million years old. About 4 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Shale, limestone, dolostone. Age: Early Devonian to Carboniferous, 324 to 422 million years old. About 0.8 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 Seligman reaches the Gulf of America by way of Butler Creek, the White River and the Mississippi: about 1,210 river miles.
Lake on the way: Table Rock Lake.
620 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Seligman; river miles along the main stem, rounded.
Seligman has a humid subtropical climate. Summer afternoons average 87° in July; winter nights fall to about 23° in January. About 47 inches of rain fall in a normal year.
On November 14 Seligman normally reaches 58° and falls to 36°. The record high is 76°, in 2025; the record low 9°, in 1986. The most rain on this date, 0.86 in, fell in 1978.
Normals 1991–2020 and records since 1911 at Cassville 1 NE, 13 miles north-northeast, 220 ft lower. NOAA, through RCC-ACIS.
