The Irving 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.
Sunny
Mostly sunny; warmer
Partly cloudy
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Showers likely
Irving’s center stands about 750 ft above sea level. Within three miles the land runs from 720 ft to 1,050 ft, a difference of 330 ft: rolling country. The highest named summit within 15 miles is Wadels Hill, about 1,410 ft, 11 miles south.
Under the town center the state geologic map shows Cambrian, undivided (sandstone), from the Cambrian, 487 to 542 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 29×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sandstone. Age: Cambrian, 487 to 542 million years old. About 23 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 0.9 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 Irving reaches the Gulf of America by way of Roaring Creek, the Black River, the Dodge Chute and the Mississippi: about 1,740 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Irving; river miles along the main stem, rounded.
