The LaGrange 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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4.69 inches of rain fell in two days, the most for this week of the year since records began in 1938. The next wettest, 3.94 inches, fell in 1983.
LaGrange’s center stands about 760 ft above sea level. Within three miles the land runs from 650 ft to 830 ft, a difference of 180 ft: gently rolling country. The highest named summit within 15 miles is The Mountain, about 930 ft, 13 miles south-southwest.
Under the town center the state geologic map shows Hornblende Gneiss/ Amphibolite (hornblende-gneiss, amphibolite), from the Precambrian to Paleozoic.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 61×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Hornblende-gneiss, amphibolite. Age: Precambrian to Paleozoic. About 14 mi of the line.
Gneiss, mica-schist, amphibolite. Age: Precambrian to Paleozoic. About 8 mi of the line.
Biotite-gneiss. Age: Precambrian to Paleozoic. About 1 mi of the line.
Age: Precambrian to Paleozoic. About 0.5 mi of the line.
Amphibolite, schist. Age: Precambrian to Paleozoic. About 0.5 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 LaGrange reaches the Gulf of America by way of Blue John Creek, Long Cane Creek, the Chattahoochee and the Apalachicola: about 320 river miles.
Lakes on the way: Walter F George Reservoir and Bartletts Ferry Lake.
110 miles of the trip are on the Apalachicola.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of LaGrange; river miles along the main stem, rounded.
LaGrange has a humid subtropical climate. Summer afternoons average 89° in July; winter nights fall to about 32° in January. About 53 inches of rain fall in a normal year.
On November 14 LaGrange normally reaches 65° and falls to 40°. The record high is 80°, in 1985; the record low 20°, in 2013. The most rain on this date, 4.35 in, fell in 2006.
Normals 1991–2020 and records since 1938 at Rock Mills, 17 miles west-northwest. NOAA, through RCC-ACIS.
