The D'Lo 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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D'Lo’s center stands about 310 ft above sea level. Within three miles the land runs from 280 ft to 440 ft, a difference of 160 ft: gently rolling country. The highest named summit within 15 miles is Indian Mound Hill, about 580 ft, 13 miles north-northeast.
Under the town center the state geologic map shows Catahoula formation (sand), from the Miocene, 5.3 to 23 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 64×. 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. Age: Miocene, 5.3 to 23 million years old. About 18 mi of the line.
Sand, gravel. Age: Pliocene to Pleistocene, less than 5.3 million years old. About 3 mi of the line.
Clay, sand. Age: Miocene, 5.3 to 23 million years old. About 3 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 D'Lo reaches the Gulf of America by way of the Strong and the Pearl: about 260 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of D'Lo; river miles along the main stem, rounded.
