The Carnegie 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.
Showers likely
Showers likely
Partly cloudy
Partly cloudy
Partly cloudy
Mostly cloudy
Showers likely
Carnegie’s center stands about 1,340 ft above sea level. Within three miles the land runs from 1,270 ft to 1,450 ft, a difference of 180 ft: gently rolling country. The highest named summit within 15 miles is Longhorn Mountain, about 1,930 ft, 15 miles southwest.
Under the town center the state geologic map shows Rush Springs Formation (sandstone), from the Permian, 252 to 299 million years old.
The section below crosses 8 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 39×. 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: Permian, 252 to 299 million years old. About 11 mi of the line.
Shale. Age: Permian, 252 to 299 million years old. About 7 mi of the line.
Fine-detrital. Age: Holocene, less than 12,000 years old. About 3 mi of the line.
Sandstone, conglomerate. Age: Permian, 252 to 299 million years old. About 0.8 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 0.6 mi of the line.
Rhyolite. Age: Middle Cambrian, 497 to 521 million years old. About 0.5 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 2 smaller units along the line are not listed.
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 Carnegie reaches the Gulf of America by way of the Washita, the Red River, the Atchafalaya and the Lower Atchafalaya: about 1,160 river miles.
680 miles of the trip are on the Red River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Carnegie; river miles along the main stem, rounded.
