The Grand Saline 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.
Mostly cloudy
Showers likely; cooler
Chance of showers; warmer
Partly cloudy
Partly cloudy
Partly cloudy
Mostly sunny
87° on Nov. 14, 2005, the hottest reading for this week of the year since 1989. Next is 84° in 1989.
Grand Saline’s center stands about 440 ft above sea level. Within three miles the land runs from 360 ft to 500 ft, a difference of 140 ft: gently rolling country.
Under the town center the state geologic map shows Wilcox Group, undivided (mudstone), from the Late Paleocene to Early Eocene, 48 to 59 million years old.
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 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.
Mudstone. Age: Late Paleocene to Early Eocene, 48 to 59 million years old. About 18 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 3 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 1 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 1 mi of the line.
Siltstone, sandstone. Age: Middle Eocene, 38 to 48 million years old. About 0.7 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 Grand Saline reaches the Gulf of America by way of Grand Saline Creek and the Sabine: about 440 river miles.
Lakes on the way: Toledo Bend Reservoir and Sabine Lake.
210 miles of the trip are on the Sabine.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Grand Saline; river miles along the main stem, rounded.
Grand Saline has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 35° in January. About 45 inches of rain fall in a normal year.
On November 14 Grand Saline normally reaches 66° and falls to 46°. The record high is 87°, in 2005; the record low 29°, in 2018. The most rain on this date, 0.65 in, fell in 1993.
Normals 1991–2020 and records since 1989 at Lake Fork Reservoir, 15 miles northeast. NOAA, through RCC-ACIS.
