The Bostic 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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5.77 inches of rain fell in two days, the most for this week of the year since records began in 1893. The next wettest, 3.56 inches, fell in 2009.
Bostic’s center stands about 940 ft above sea level. Within three miles the land runs from 820 ft to 1,100 ft, a difference of 280 ft: rolling country. The highest named summit within 15 miles is Shoal Mountain, about 2,420 ft, 14 miles north.
Under the town center the state geologic map shows Biotite Gneiss and Schist (biotite-gneiss, mica-schist, calc-silicate-rock), from the Neoproterozoic to Cambrian, 487 to 1,000 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 15×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Mica-schist. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 9 mi of the line.
Biotite-gneiss, mica-schist, calc-silicate-rock. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 7 mi of the line.
Amphibolite, biotite-gneiss. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 3 mi of the line.
Metagranite. Age: Early Cambrian to Late Ordovician, 455 to 540 million years old. About 2 mi of the line.
Biotite-gneiss. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 2 mi of the line.
Biotite-gneiss. Age: Cambrian to Ordovician, 445 to 542 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 Bostic reaches the Atlantic Ocean by way of Roberson Creek, the Second Broad, the Broad, the Congaree, the Santee and the South Santee: about 320 river miles.
Lake on the way: Lib Pines Lake.
120 miles of the trip are on the Broad.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Bostic; river miles along the main stem, rounded.
Bostic has a humid subtropical climate. Summer afternoons average 91° in July; winter nights fall to about 27° in January. About 50 inches of rain fall in a normal year, with about 4 inches of snow.
On November 14 Bostic normally reaches 64° and falls to 35°. The record high is 81°, in 1955; the record low 18°, in 2019. The most rain on this date, 1.88 in, fell in 1972.
Normals 1991–2020 and records since 1893 at Shelby 2 NW, 15 miles east-southeast, 120 ft lower. NOAA, through RCC-ACIS.
