The Red Boiling Springs 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.
Red Boiling Springs’s center stands about 800 ft above sea level. Within three miles the land runs from 760 ft to 1,040 ft, a difference of 280 ft: rolling country. The highest named summit within 15 miles is Brays Knob, about 1,120 ft, 11 miles east-northeast.
Under the town center the state geologic map shows Fort Payne Formation and Chattanooga Shale (chert), from the Carboniferous, 324 to 359 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 38×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Chert. Age: Carboniferous, 324 to 359 million years old. About 17 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 4 mi of the line.
Shale, limestone. Age: Ordovician, 445 to 487 million years old. About 3 mi of the line.
Limestone. Age: Ordovician, 445 to 487 million years old. 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 Red Boiling Springs reaches the Gulf of America by way of Salt Lick Creek, the Barren, the Green River, the Ohio and the Mississippi: about 1,450 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Red Boiling Springs; river miles along the main stem, rounded.