The New Union 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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80° on Nov. 17, 1958, the hottest reading for this week of the year since 1893. Next is 79° in 1964.
New Union’s center stands about 1,090 ft above sea level. Within three miles the land runs from 1,020 ft to 1,160 ft, a difference of 140 ft: gently rolling country. The highest named summit within 15 miles is Big Butte, about 2,030 ft, 12 miles southeast.
Under the town center the state geologic map shows St. Louis Limestone and Warsaw Limestone, from the Carboniferous, 324 to 359 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 17×. 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 13 mi of the line.
Limestone, calcarenite. Age: Ordovician, 445 to 487 million years old. About 5 mi of the line.
Chert. Age: Carboniferous, 324 to 359 million years old. About 3 mi of the line.
Shale, limestone. Age: Ordovician, 445 to 487 million years old. About 2 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 0.5 mi of the line.
Shale. Age: Carboniferous, 324 to 359 million years old. About 0.4 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit along the line are not listed.
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 New Union reaches the Gulf of America by way of the Duck, the Tennessee, the Ohio and the Mississippi: about 1,400 river miles.
Lakes on the way: Pickwick Lake and Normandy Lake.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of New Union; river miles along the main stem, rounded.
New Union has a humid subtropical climate. Summer afternoons average 87° in July; winter nights fall to about 29° in January. About 61 inches of rain fall in a normal year, with about 3 inches of snow.
On November 14 New Union normally reaches 60° and falls to 37°. The record high is 79°, in 1964; the record low 18°, in 1907. The most rain on this date, 1.64 in, fell in 1915.
Normals 1991–2020 and records since 1893 at Tullahoma, 15 miles south-southwest. NOAA, through RCC-ACIS.
