The Bremond 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.
Bremond’s center stands about 460 ft above sea level. Within three miles the land runs from 380 ft to 510 ft, a difference of 130 ft: gently rolling country.
Under the town center the state geologic map shows Hooper Formation (claystone), from the Paleocene, 56 to 66 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 63×. 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: Paleocene, 56 to 66 million years old. About 10 mi of the line.
Claystone. Age: Paleocene, 56 to 66 million years old. About 7 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 3 mi of the line.
Claystone. Age: Late Paleocene to Early Eocene, 48 to 59 million years old. About 2 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Clay, sand. Age: Paleocene to Eocene, 34 to 66 million years old. About 0.2 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 Bremond reaches the Gulf of America by way of Big Willow Creek, Walnut Creek and the Brazos: about 350 river miles.
290 miles of the trip are on the Brazos.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Bremond; river miles along the main stem, rounded.