The Antelope Hills 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
Partly cloudy
Mostly cloudy
Mostly sunny; cooler
Mostly cloudy
Showers likely; cooler
−27° on Nov. 12, 2014, the coldest reading for this week of the year since 1939. Next is −19° in 2000.
Antelope Hills’s center stands about 5,690 ft above sea level. Within three miles the land runs from 5,430 ft to 5,830 ft, a difference of 400 ft: rolling country. The highest named summit within 15 miles is Twentymile Hill, about 5,850 ft, 3 miles north.
Under the town center the state geologic map shows Lance Formation (sandstone, shale), from the Late Cretaceous, 66 to 100 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 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.
Sandstone, shale. Age: Late Cretaceous, 66 to 100 million years old. About 12 mi of the line.
Sand, unconsolidated. Age: Pleistocene to Holocene, less than 2.6 million years old. About 8 mi of the line.
Sandstone, shale. Age: Late Cretaceous, 66 to 100 million years old. About 2 mi of the line.
Clay, silt, sand. 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.
Antelope Hills has a warm-summer humid continental climate. Summer afternoons average 89° in July; winter nights fall to about 15° in January. A normal year brings about 72 inches of snow; with the rain, that comes to about 12 inches of water.
On November 14 Antelope Hills normally reaches 47° and falls to 23°. The record high is 68°, in 1999; the record low −10°, in 1978. The most rain on this date, 0.40 in, fell in 2006.
Normals 1991–2020 and records since 1939 from the Casper Area threaded record (Casper-Natrona County Airport, 15 miles south-southwest, 370 ft lower). NOAA, through RCC-ACIS.
