The Toccoa 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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4.91 inches of rain fell in two days, the most for this week of the year since records began in 1891. The next wettest, 3.58 inches, fell in 2018.
Toccoa’s center stands about 1,020 ft above sea level. Within three miles the land runs from 720 ft to 1,350 ft, a difference of 630 ft: hilly country. The highest named summit within 15 miles is Stony Mountain, about 2,870 ft, 13 miles northwest.
Under the town center the state geologic map shows Granitic Gneiss undifferentiated, from the Precambrian to Paleozoic.
The section below crosses 8 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 14×. 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: Precambrian to Paleozoic. About 9 mi of the line.
Metagraywacke, mica-schist. Age: Precambrian to Paleozoic. About 5 mi of the line.
Hornblende-gneiss, amphibolite. Age: Precambrian to Paleozoic. About 4 mi of the line.
Amphibolite, biotite-gneiss, mica-schist. Age: Precambrian to Paleozoic. About 4 mi of the line.
Age: Precambrian to Paleozoic. About 0.9 mi of the line.
Quartzite, biotite-gneiss. Age: Precambrian to Paleozoic. 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. 2 smaller units 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 Toccoa reaches the Atlantic Ocean by way of Toccoa Creek, the Tugaloo and the Savannah: about 330 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Toccoa; river miles along the main stem, rounded.
Toccoa has a humid subtropical climate. Summer afternoons average 89° in July; winter nights fall to about 33° in January. About 59 inches of rain fall in a normal year, with about 1 inch of snow.
On November 14 Toccoa normally reaches 64° and falls to 41°. The record high is 89°, in 2003; the record low 23°, in 1986. The most rain on this date, 2.23 in, fell in 1917.
Normals 1991–2020 and records since 1891 at Toccoa, here. NOAA, through RCC-ACIS.
