The Kingsbury Colony 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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Kingsbury Colony’s center stands about 3,850 ft above sea level. Within three miles the land runs from 3,750 ft to 3,960 ft, a difference of 210 ft: rolling country. The highest named summit within 15 miles is Scoffin Butte, about 5,100 ft, 15 miles southwest.
Under the town center the state geologic map shows Two Medicine Formation (sandstone, siltstone, mudstone), from the Late Cretaceous, 66 to 84 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 18×. 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, siltstone, mudstone. Age: Late Cretaceous, 66 to 84 million years old. About 18 mi of the line.
Age: Late Miocene to Holocene, less than 7.2 million years old. About 2 mi of the line.
Sandstone. Age: Late Cretaceous, 66 to 72 million years old. About 1 mi of the line.
Shale. Age: Late Cretaceous, 72 to 84 million years old. About 1 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 1.8 million years old. About 0.6 mi of the line.
Sandstone, siltstone, shale. Age: Late Cretaceous, 72 to 87 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. 1 smaller unit 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 Kingsbury Colony reaches the Gulf of America by way of Birch Creek, the Two Medicine, the Marias, the Missouri and the Mississippi: about 3,420 river miles.
Lakes on the way: Lake Oahe, Lake Sakakawea, Lake Fort Peck and Lake Sharpe.
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 Kingsbury Colony; river miles along the main stem, rounded.
