The Hay Springs 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.
Partly cloudy
Sunny; warmer
Mostly sunny
Partly cloudy
Mostly sunny; cooler
Partly cloudy
Showers likely
Hay Springs’s center stands about 3,840 ft above sea level. Within three miles the land runs from 3,760 ft to 3,980 ft, a difference of 220 ft: rolling country.
Under the town center the state geologic map shows Arikaree Group (sand, volcanic), from the Late Oligocene to Miocene, 5.3 to 28 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 29×. 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, volcanic. Age: Late Oligocene to Miocene, 5.3 to 28 million years old. About 16 mi of the line.
Siltstone-mudstone, conglomerate-sandstone. Age: Miocene, 5.3 to 23 million years old. About 8 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 Hay Springs reaches the Gulf of America by way of Hay Springs Creek, Rush Creek, the Niobrara, the Missouri and the Mississippi: about 2,330 river miles.
Lake on the way: 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 Hay Springs; river miles along the main stem, rounded.
