The Gascoyne 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
Partly cloudy
Partly cloudy
Mostly cloudy; cooler
Mostly cloudy
Chance of showers
77° on Nov. 13, 1999, the hottest reading for this week of the year since 1915. Next is 71° in 1953.
Gascoyne’s center stands about 2,760 ft above sea level. Within three miles the land runs from 2,720 ft to 2,840 ft, a difference of 120 ft: gently rolling country. The highest named summit within 15 miles is Talbot Butte, about 3,250 ft, 14 miles west-northwest.
Under the town center the state geologic map shows Slope Formation (sandstone, siltstone, claystone), 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 56×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Claystone, siltstone. Age: Paleocene, 56 to 66 million years old. About 8 mi of the line.
Siltstone, claystone, sandstone. Age: Paleocene, 56 to 66 million years old. About 7 mi of the line.
Sandstone, siltstone, claystone. Age: Paleocene, 56 to 66 million years old. About 5 mi of the line.
Shale, sandstone. Age: Paleocene, 56 to 66 million years old. About 2 mi of the line.
Sandstone, siltstone, claystone. Age: Paleocene, 56 to 66 million years old. About 0.9 mi of the line.
Sandstone. Age: Paleocene, 56 to 66 million years old. About 0.1 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.
A raindrop that lands in Gascoyne reaches the Gulf of America by way of Buffalo Creek, the North Fork Grand, the Grand River, the Missouri and the Mississippi: about 2,640 river miles.
Lakes on the way: Lake Oahe, Lake Sharpe, Lake Francis Case and 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 Gascoyne; river miles along the main stem, rounded.
Gascoyne has a warm-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 6° in January. A normal year brings about 48 inches of snow; with the rain, that comes to about 17 inches of water.
On November 14 Gascoyne normally reaches 41° and falls to 19°. The record high is 71°, in 1953; the record low −16°, in 2014. The most rain on this date, 0.54 in, fell in 1928.
Normals 1991–2020 and records since 1915 at Bowman, 15 miles west-northwest, 220 ft higher. NOAA, through RCC-ACIS.
