The Sicangu Village 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
Mostly sunny; warmer
Mostly sunny
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Mostly sunny
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Showers likely
−22° on Nov. 14, 1959, the coldest reading for this week of the year since 1889. Next is −18° in 1891.
Sicangu Village’s center stands about 2,760 ft above sea level. Within three miles the land runs from 2,670 ft to 2,820 ft, a difference of 150 ft: gently rolling country.
Under the town center the state geologic map shows Eolian Deposits (silt, sand), from the Quaternary, 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 38×. 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, sand. Age: Quaternary, less than 2.6 million years old. About 13 mi of the line.
Siltstone-mudstone, conglomerate-sandstone. Age: Miocene, 5.3 to 23 million years old. About 10 mi of the line.
Clay. Age: Early Oligocene to Late Oligocene, 23 to 34 million years old. About 0.5 mi of the line.
Sandstone, limestone, siltstone. Age: Miocene to Pliocene, 2.6 to 23 million years old. About 0.5 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 Sicangu Village reaches the Gulf of America by way of Rock Creek, the Keya Paha, the Niobrara, the Missouri and the Mississippi: about 2,210 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 Sicangu Village; river miles along the main stem, rounded.
Sicangu Village has a dry-winter hot-summer continental climate. Summer afternoons average 90° in July; winter nights fall to about 11° in January. A normal year brings about 34 inches of snow; with the rain, that comes to about 21 inches of water.
On November 14 Sicangu Village normally reaches 51° and falls to 22°. The record high is 81°, in 2025; the record low −22°, in 1959. The most rain on this date, 0.38 in, fell in 1891.
Normals 1991–2020 and records since 1889 from the Valentine Area threaded record (Valentine Miller Field Airport, 11 miles south, 160 ft lower). NOAA, through RCC-ACIS.
