The Sardis 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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16° on Nov. 13, 2019, the coldest reading for this week of the year since 1940. Next is 22° in 2014.
Sardis’s center stands about 380 ft above sea level. Within three miles the land runs from 270 ft to 400 ft, a difference of 130 ft: gently rolling country. The highest named summit within 15 miles is Lowe Mountain, about 600 ft, 14 miles southeast.
Under the town center the state geologic map shows Kosciusko formation (sand, clay), from the Eocene, 34 to 56 million years old.
The section below crosses 3 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.
Sand, clay. Age: Eocene, 34 to 56 million years old. About 22 mi of the line.
Clay, sand. 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 0.9 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 Sardis reaches the Gulf of America by way of Orr Creek, the Little Tallahatchie, the Tallahatchie, the Yazoo and the Mississippi: about 740 river miles.
450 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Sardis; river miles along the main stem, rounded.
Sardis has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 33° in January. About 58 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1940 at Sardis Dam, 6 miles east. NOAA, through RCC-ACIS.
