The Tishomingo 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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Tishomingo’s center stands about 520 ft above sea level. Within three miles the land runs from 410 ft to 670 ft, a difference of 260 ft: rolling country. The highest named summit within 15 miles is Woodall Mountain, about 810 ft, 10 miles north.
Under the town center the state geologic map shows Eutaw formation (sand, clay), from the Late Cretaceous, 66 to 100 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 44×. 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: Late Cretaceous, 66 to 100 million years old. About 14 mi of the line.
Sand, clay. Age: Cretaceous, 66 to 145 million years old. About 4 mi of the line.
Sandstone, shale, limestone. Age: Carboniferous, 324 to 359 million years old. About 2 mi of the line.
Shale. Age: Carboniferous, 324 to 359 million years old. About 2 mi of the line.
Sand, clay. Age: Late Cretaceous, 66 to 100 million years old. About 1 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 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. 1 smaller unit 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 Tishomingo reaches Mobile Bay and the Gulf of America by way of Bay Springs Lake, Mackeys Creek, the Tombigbee and the Mobile: about 480 river miles.
Lake on the way: Bay Springs Lake.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Tishomingo; river miles along the main stem, rounded.
