The Manderson-White Horse Creek 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.
Mostly cloudy
Mostly sunny; warmer
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Partly cloudy; cooler
Partly cloudy
Showers likely
Manderson-White Horse Creek’s center stands about 3,230 ft above sea level. Within three miles the land runs from 2,950 ft to 3,490 ft, a difference of 540 ft: hilly country. The highest named summit within 15 miles is Porcupine Butte, about 3,640 ft, 9 miles east-southeast.
Under the town center the state geologic map shows Arikaree Group (siltstone, sandstone), from the Oligocene to Miocene, 5.3 to 34 million years old.
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 24×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Siltstone, sandstone. Age: Oligocene to Miocene, 5.3 to 34 million years old. About 20 mi of the line.
Silt, sand. Age: Quaternary, less than 2.6 million years old. About 2 mi of the line.
Coarse-detrital, clay. Age: Quaternary, less than 2.6 million years old. About 1 mi of the line.
Coarse-detrital, fine-detrital. Age: Quaternary, less than 2.6 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 Manderson-White Horse Creek reaches the Gulf of America by way of Wounded Knee Creek, the White River, the Missouri and the Mississippi: about 2,500 river miles.
Lakes on the way: Lake Francis Case and Lewis and Clark Lake.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Manderson-White Horse Creek; river miles along the main stem, rounded.
