The Tatum 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.
Tatum’s center stands about 4,000 ft above sea level. Within three miles the land runs from 3,960 ft to 4,040 ft, a difference of 80 ft: gently rolling country.
Under the town center the state geologic map shows Eolian deposits (unconsolidated), from the Pleistocene to Holocene, less than 0.8 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 55×. 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: Middle Miocene to Early Pliocene, 3.6 to 16 million years old. About 18 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 0.8 million years old. About 6 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.