The Evant 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.
Evant’s center stands about 1,250 ft above sea level. Within three miles the land runs from 1,130 ft to 1,490 ft, a difference of 360 ft: rolling country. The highest named summit within 15 miles is Payne Mountain, about 1,620 ft, 13 miles southwest.
Under the town center the state geologic map shows Walnut Clay (limestone, shale), from the Early Cretaceous, 100 to 145 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 37×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Limestone, shale. Age: Early Cretaceous, 100 to 145 million years old. About 11 mi of the line.
Claystone. Age: Early Cretaceous, 100 to 145 million years old. About 10 mi of the line.
Sandstone, claystone. Age: Early Cretaceous, 100 to 145 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 Evant reaches the Gulf of America by way of Langford Branch, Cowhouse Creek, the Leon, the Little River and the Brazos: about 500 river miles.
Lake on the way: Belton Lake.
320 miles of the trip are on the Brazos.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Evant; river miles along the main stem, rounded.