The Slater-Marietta 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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3.93 inches of rain fell in two days, the most for this week of the year since records began in 1941. The next wettest, 3.50 inches, fell in 1968.
Slater-Marietta’s center stands about 1,120 ft above sea level. Within three miles the land runs from 940 ft to 1,290 ft, a difference of 350 ft: rolling country. The highest named summit within 15 miles is Rich Mountain, about 3,770 ft, 14 miles northwest.
Under the town center the state geologic map shows Migmatitic granitoid gneiss, 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 8×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Gneiss. Age: Ordovician, 445 to 487 million years old. About 14 mi of the line.
Gneiss. Age: Paleozoic, 252 to 542 million years old. About 4 mi of the line.
Gneiss. Age: Early Devonian, 409 to 410 million years old. About 3 mi of the line.
Biotite-gneiss. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 2 mi of the line.
Mica-schist. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 1 mi of the line.
Biotite-gneiss, mica-schist. Age: Neoproterozoic to Cambrian, 487 to 1,000 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.
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 Slater-Marietta reaches the Atlantic Ocean by way of the North Saluda, the Saluda, the Congaree, the Santee and the South Santee: about 340 river miles.
Lakes on the way: Lib Pines Lake and Lake Murray.
110 miles of the trip are on the Saluda.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Slater-Marietta; river miles along the main stem, rounded.
Slater-Marietta has a humid subtropical climate. Summer afternoons average 90° in July; winter nights fall to about 30° in January. About 57 inches of rain fall in a normal year, with about 1 inch of snow.
On November 14 Slater-Marietta normally reaches 64° and falls to 38°. The record high is 78°, in 2020; the record low 23°, in 2019. The most rain on this date, 1.81 in, fell in 1972.
Normals 1991–2020 and records since 1941 from the Pickens Area threaded record (Pickens, 17 miles southwest). NOAA, through RCC-ACIS.
