The Burlington 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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Burlington’s center stands about 4,440 ft above sea level. Within three miles the land runs from 4,330 ft to 4,640 ft, a difference of 310 ft: rolling country. The highest named summit within 15 miles is Tatman Mountain, about 6,250 ft, 14 miles southwest.
Under the town center the state geologic map shows Gravel, pediment, and fan deposits, from the Pleistocene to Holocene, less than 2.6 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 11×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Claystone, shale, sandstone. Age: Eocene, 34 to 56 million years old. About 14 mi of the line.
Gravel. Age: Pleistocene to Holocene, less than 2.6 million years old. About 5 mi of the line.
Clay, silt, sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 4 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 2.6 million years old. About 1 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 Burlington reaches the Gulf of America by way of the Greybull, the Bighorn, the Yellowstone, the Missouri and the Mississippi: about 3,230 river miles.
Lakes on the way: Lake Oahe, Lake Sakakawea, Lake Sharpe and Lake Francis Case.
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 Burlington; river miles along the main stem, rounded.
