The Randlett 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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69° on Nov. 16, 1981, the hottest reading for this week of the year since 1915. Next is 69° in 1989.
Randlett’s center stands about 4,820 ft above sea level. Within three miles the land runs from 4,750 ft to 5,260 ft, a difference of 510 ft: hilly country. The highest named summit within 15 miles is McCoy Knolls, about 5,360 ft, 15 miles east-northeast.
Under the town center the state geologic map shows Alluvium and colluvium (unconsolidated), from the Quaternary, less than 2.6 million years old.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 22×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Unconsolidated. Age: Quaternary, less than 2.6 million years old. About 13 mi of the line.
Sandstone-mudstone. Age: Middle Eocene to Early Oligocene, 28 to 48 million years old. About 8 mi of the line.
Coarse-detrital. Age: Quaternary, less than 2.6 million years old. About 3 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 Randlett reaches the Gulf of California by way of the Duchesne, the Green River and the Colorado: about 1,250 river miles.
Lakes on the way: Lake Mead, Lake Powell, Lake Mohave and Lake Havasu.
Seldom reaches the sea. Dams and canals now take nearly all of the Colorado before its old delta in Mexico.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Randlett; river miles along the main stem, rounded.
Randlett has a cold semi-arid climate. Summer afternoons average 91° in July; winter nights fall to about 7° in January. About 7 inches of rain fall in a normal year.
On November 14 Randlett normally reaches 50° and falls to 22°. The record high is 69°, in 1989; the record low 6°, in 1978. The most rain on this date, 2.00 in, fell in 1964.
Normals 1991–2020 and records since 1915 at Myton, 14 miles west-southwest, 260 ft higher. NOAA, through RCC-ACIS.
