The Padroni 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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Padroni’s center stands about 4,010 ft above sea level. Within three miles the land runs from 3,910 ft to 4,120 ft, a difference of 210 ft: rolling country. The highest named summit within 15 miles is Kirchnavy Butte, about 4,550 ft, 10 miles northwest.
Under the town center the state geologic map shows White River Fm or Group (sandstone, claystone), from the Oligocene, 23 to 34 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 26×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Gravel, unconsolidated. Age: Pleistocene, 0.2 to 1.6 million years old. About 7 mi of the line.
Sand, silt. Age: Quaternary, less than 2.6 million years old. About 5 mi of the line.
Sandstone, conglomerate. Age: Miocene to Pliocene, 2.6 to 23 million years old. About 5 mi of the line.
Sandstone, claystone. Age: Oligocene, 23 to 34 million years old. About 3 mi of the line.
Unconsolidated. Age: Quaternary, less than 2.6 million years old. About 3 mi of the line.
Sandstone. Age: Miocene, 5.3 to 23 million years old. About 2 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 Padroni reaches the Gulf of America by way of the South Platte, the Platte, the Missouri and the Mississippi: about 2,230 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 Padroni; river miles along the main stem, rounded.
