The Silverstreet 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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4.71 inches of rain fell in two days, the most for this week of the year since records began in 1893. The next wettest, 3.51 inches, fell in 1940.
Silverstreet’s center stands about 500 ft above sea level. Within three miles the land runs from 380 ft to 550 ft, a difference of 170 ft: gently rolling country.
Under the town center the state geologic map shows Biotite quartz-plagioclase gneiss (biotite-gneiss), from the Neoproterozoic to Paleozoic, 252 to 1,000 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 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Metavolcanic. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 7 mi of the line.
Biotite-gneiss. Age: Neoproterozoic to Paleozoic, 252 to 1,000 million years old. About 7 mi of the line.
Gabbro. Age: Silurian to Devonian, 359 to 445 million years old. About 4 mi of the line.
Mylonite. Age: Carboniferous to Permian, 252 to 359 million years old. About 3 mi of the line.
Granite. Age: Silurian, 422 to 445 million years old. About 3 mi of the line.
Metatonalite. Age: Neoproterozoic, 542 to 1,000 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. 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 Silverstreet reaches the Atlantic Ocean by way of Beaverdam Creek, the Saluda, the Congaree, the Santee and the South Santee: about 230 river miles.
Lakes on the way: Lib Pines Lake and Lake Murray.
70 miles of the trip are on the Santee.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Silverstreet; river miles along the main stem, rounded.
Silverstreet has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 31° in January. About 47 inches of rain fall in a normal year.
On November 14 Silverstreet normally reaches 64° and falls to 40°. The record high is 84°, in 1931; the record low 23°, in 2013. The most rain on this date, 1.67 in, fell in 1997.
Normals 1991–2020 and records since 1893 at Newberry, 7 miles northeast. NOAA, through RCC-ACIS.
