The Hagarville 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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13° on Nov. 12, 2019, the coldest reading for this week of the year since 1986. Next is 19° in 2014.
Hagarville’s center stands about 540 ft above sea level. Within three miles the land runs from 430 ft to 980 ft, a difference of 550 ft: hilly country. The highest named summit within 15 miles is Woods Mountain, about 2,190 ft, 5 miles north.
Under the town center the state geologic map shows Atoka Formation, undivided (sandstone, black-shale), from the Carboniferous, 299 to 324 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 12×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone, black-shale. Age: Carboniferous, 299 to 324 million years old. About 19 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.
Shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 2 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 0.6 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 Hagarville reaches the Gulf of America by way of Deevers Branch, Little Piney Creek, Big Piney Creek, the Arkansas and the Mississippi: about 850 river miles.
Lake on the way: Murray Lake.
600 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Hagarville; river miles along the main stem, rounded.
Hagarville has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 29° in January. About 53 inches of rain fall in a normal year, with about 2 inches of snow.
Normals 1991–2020 and records since 1986 at Clarksville 6 NE, 4 miles west-northwest, 310 ft higher. NOAA, through RCC-ACIS.
