The Bern 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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Bern’s center stands about 1,280 ft above sea level. Within three miles the land runs from 1,080 ft to 1,300 ft, a difference of 220 ft: rolling country.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 50×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand, silt. Age: Pleistocene, less than 2.6 million years old. About 11 mi of the line.
Shale, limestone. Age: Permian, 252 to 299 million years old. About 6 mi of the line.
Shale, limestone. Age: Permian, 252 to 299 million years old. About 2 mi of the line.
Limestone, shale. Age: Permian, 252 to 299 million years old. About 2 mi of the line.
Sand, silt, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 2 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 0.4 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 Bern reaches the Gulf of America by way of Wolf Pen Creek, Deer Creek, the South Fork Nemaha, the Big Nemaha, the Missouri and the Mississippi: about 1,730 river miles.
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 Bern; river miles along the main stem, rounded.
