The Jellico 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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Jellico’s center stands about 990 ft above sea level. Within three miles the land runs from 960 ft to 1,990 ft, a difference of 1,030 ft: steep hill country. The highest named summit within 15 miles is Stout Knob, about 2,970 ft, 12 miles southeast.
Under the town center the state geologic map shows Slatestone Formation (shale), from the Carboniferous, 299 to 324 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 10×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale, siltstone. Age: Carboniferous, 299 to 324 million years old. About 8 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 6 mi of the line.
Sand, silt. Age: Pleistocene to Holocene, less than 2.6 million years old. About 4 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 1 mi of the line.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 1 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 Jellico reaches the Gulf of America by way of Crouches Creek, the Clear Fork, the Cumberland, the Ohio and the Mississippi: about 1,630 river miles.
Lakes on the way: Bards Lake, Lake Cumberland and Cordell Hull Reservoir.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Jellico; river miles along the main stem, rounded.
