The Beatrice 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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Beatrice’s center stands about 240 ft above sea level. Within three miles the land runs from 150 ft to 310 ft, a difference of 160 ft: gently rolling country. The highest named summit within 15 miles is Lookout Hill, about 430 ft, 8 miles west-northwest.
Under the town center the state geologic map shows Wilcox Group; Tuscahoma Sand (silt, clay), from the Paleocene, 56 to 66 million years old.
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 46×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Silt, clay. Age: Paleocene, 56 to 66 million years old. About 12 mi of the line.
Claystone. Age: Eocene, 34 to 56 million years old. About 6 mi of the line.
Clay, sand. Age: Eocene, 34 to 56 million years old. About 2 mi of the line.
Sand. Age: Eocene, 34 to 56 million years old. About 2 mi of the line.
Sand. Age: Pleistocene, less than 2.6 million years old. About 1 mi of the line.
Sand. Age: Holocene, less than 12,000 years old. About 0.7 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 Beatrice reaches Mobile Bay and the Gulf of America by way of Robinson Creek, Big Flat Creek, the Alabama and the Mobile: about 160 river miles.
80 miles of the trip are on the Alabama.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Beatrice; river miles along the main stem, rounded.
