The Martin 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.
Sunny
Sunny; warmer
Sunny
Sunny
Sunny
Mostly sunny
Mostly sunny
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.
Martin’s center stands about 920 ft above sea level. Within three miles the land runs from 700 ft to 930 ft, a difference of 230 ft: rolling country. The highest named summit within 15 miles is Currahee Mountain, about 1,720 ft, 11 miles west-northwest.
Under the town center the state geologic map shows Granite/ granite gneiss (granite, gneiss), 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 48×. 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 13 mi of the line.
Granite, gneiss. Age: Precambrian to Paleozoic. About 4 mi of the line.
Biotite-gneiss, mica-schist. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 4 mi of the line.
Hornblende-gneiss, amphibolite. Age: Neoproterozoic to Cambrian, 487 to 1,000 million years old. About 2 mi of the line.
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.
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 Martin reaches the Atlantic Ocean by way of Clarks Creek, the North Fork Broad, the Broad and the Savannah: about 330 river miles.
250 miles of the trip are on the Savannah.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Martin; river miles along the main stem, rounded.
Martin 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 Martin 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, 10 miles northwest. NOAA, through RCC-ACIS.
