The Maypearl 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.
Chance of showers
Showers likely; cooler
Chance of showers
Sunny; warmer
Chance of showers
Partly cloudy
Partly cloudy
Maypearl’s center stands about 530 ft above sea level. Within three miles the land runs from 500 ft to 710 ft, a difference of 210 ft: rolling country.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 54×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Marlstone, chalk. Age: Late Cretaceous, 66 to 100 million years old. About 14 mi of the line.
Black-shale, siltstone. Age: Late Cretaceous, 66 to 100 million years old. About 9 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 1 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 0.3 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 Maypearl reaches Galveston Bay and the Gulf of America by way of North Fork Chambers Creek, Chambers Creek, Richland Creek and the Trinity: about 420 river miles.
Lake on the way: Woodlands Golf Course Lake.
140 miles of the trip are on the Trinity.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Maypearl; river miles along the main stem, rounded.
