The Dill City 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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Dill City’s center stands about 1,870 ft above sea level. Within three miles the land runs from 1,720 ft to 1,880 ft, a difference of 160 ft: gently rolling country.
Under the town center the state geologic map shows Elk City Sandstone, from the Permian, 252 to 299 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 42×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone. Age: Permian, 252 to 299 million years old. About 15 mi of the line.
Shale, siltstone, sandstone. Age: Permian, 252 to 299 million years old. About 8 mi of the line.
Shale, siltstone. Age: Permian, 252 to 299 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 Dill City reaches the Gulf of America by way of Little Elk Creek, Elk Creek, the North Fork Red, the Red River, the Atchafalaya and the Lower Atchafalaya: about 1,220 river miles.
960 miles of the trip are on the Red River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Dill City; river miles along the main stem, rounded.
