The Mount Pleasant 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.
Mostly cloudy
Partly cloudy; warmer
Mostly cloudy
Showers likely
Partly cloudy
Showers likely
Showers likely
−4° on Nov. 16, 1955, the coldest reading for this week of the year since 1908. Next is −3° in 1911.
Mount Pleasant’s center stands about 5,920 ft above sea level. Within three miles the land runs from 5,650 ft to 6,580 ft, a difference of 930 ft: steep hill country. The highest named summit within 15 miles is South Tent Mountain, about 11,270 ft, 12 miles south-southeast.
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 8 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 4×. 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 9 mi of the line.
Siltstone-mudstone. Age: Late Cretaceous to Paleocene, 56 to 100 million years old. About 5 mi of the line.
Latite, quartz-latite. Age: Late Eocene to Oligocene, 23 to 38 million years old. About 3 mi of the line.
Sandstone-mudstone. Age: Late Cretaceous, 72 to 84 million years old. About 2 mi of the line.
Sandstone. Age: Late Eocene to Early Oligocene, 28 to 38 million years old. About 2 mi of the line.
Unconsolidated. Age: Pleistocene, 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. 2 smaller units along the line are not listed.
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 Mount Pleasant reaches Sevier Lake by way of Pleasant Creek, the San Pitch and the Sevier: about 240 river miles. Sevier Lake has no outlet to the sea: the water leaves only by evaporating or soaking into the ground.
180 miles of the trip are on the Sevier.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Mount Pleasant; river miles along the main stem, rounded.
Mount Pleasant has a warm-summer humid continental climate. Summer afternoons average 89° in July; winter nights fall to about 13° in January. About 12 inches of rain fall in a normal year.
On November 14 Mount Pleasant normally reaches 53° and falls to 22°. The record high is 72°, in 1967; the record low 7°, in 1994. The most rain on this date, 0.72 in, fell in 1988.
Normals 1991–2020 and records since 1908 at Moroni, 7 miles west, 340 ft lower. NOAA, through RCC-ACIS.
