The Hartsville/Trousdale County 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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17° on Nov. 13, 2019, the coldest reading for this week of the year since 1934. Next is 21° in 2014.
Hartsville/Trousdale County’s center stands about 490 ft above sea level. Within three miles the land runs from 450 ft to 890 ft, a difference of 440 ft: hilly country. The highest named summit within 15 miles is Cub Knob, about 1,190 ft, 13 miles south-southeast.
Under the town center the state geologic map shows Nashville Group; Bigby-Cannon Limestone and Hermitage Formation (limestone, calcarenite), from the Ordovician, 445 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 32×. 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, calcarenite. Age: Ordovician, 445 to 487 million years old. About 8 mi of the line.
Shale, limestone. Age: Ordovician, 445 to 487 million years old. About 6 mi of the line.
Limestone. Age: Ordovician, 445 to 487 million years old. About 3 mi of the line.
Chert. Age: Carboniferous, 324 to 359 million years old. About 2 mi of the line.
Fine-detrital, coarse-detrital. Age: Quaternary, less than 2.6 million years old. About 2 mi of the line.
Limestone. Age: Ordovician, 445 to 487 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 Hartsville/Trousdale County reaches the Gulf of America by way of Darwin Branch, Little Goose Creek, Goose Creek, the Cumberland, the Ohio and the Mississippi: about 1,310 river miles.
Lake on the way: Bards 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 Hartsville/Trousdale County; river miles along the main stem, rounded.
Hartsville/Trousdale County has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 27° in January. About 53 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1934 at Lebanon 7 N, 9 miles southwest. NOAA, through RCC-ACIS.
