The Oakwood 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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Oakwood’s center stands about 290 ft above sea level. Within three miles the land runs from 230 ft to 420 ft, a difference of 190 ft: gently rolling country. The highest named summit within 15 miles is Burleson Hill, about 610 ft, 15 miles west.
Under the town center the state geologic map shows Queen City Sand (siltstone, sandstone), from the Middle Eocene, 38 to 48 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 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: Pleistocene to Holocene, less than 2.6 million years old. About 8 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 5 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 5 mi of the line.
Siltstone, sandstone. Age: Middle Eocene, 38 to 48 million years old. About 3 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 3 mi of the line.
Claystone. Age: Late Paleocene to Early Eocene, 48 to 59 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 Oakwood reaches Galveston Bay and the Gulf of America by way of Toms Creek, Northwest Fork Boons Creek, Boons Creek and the Trinity: about 270 river miles.
Lake on the way: Woodlands Golf Course Lake.
120 miles of the trip are on the Trinity.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Oakwood; river miles along the main stem, rounded.
