The Welling 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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Welling’s center stands about 760 ft above sea level. Within three miles the land runs from 660 ft to 1,050 ft, a difference of 390 ft: rolling country. The highest named summit within 15 miles is Bunch Mountain, about 1,570 ft, 12 miles south-southeast.
Under the town center the state geologic map shows Keokuk and Reeds Spring Formations and St. Joe Group (chert, limestone), from the Carboniferous, 324 to 359 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 26×. 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, limestone. Age: Carboniferous, 324 to 359 million years old. About 19 mi of the line.
Limestone, shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 1 mi of the line.
Limestone, shale. Age: Carboniferous, 324 to 359 million years old. About 1 mi of the line.
Fine-detrital. Age: Holocene, less than 12,000 years old. About 1 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 0.9 mi of the line.
Shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 0.8 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 Welling reaches the Gulf of America by way of the Baron Fork, the Illinois, the Arkansas and the Mississippi: about 1,020 river miles.
Lakes on the way: Murray Lake, Tenkiller Ferry Lake and Ozark Lake.
600 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Welling; river miles along the main stem, rounded.
