The Grantsville 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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7° on Nov. 14, 1986, the coldest reading for this week of the year since 1892. Next is 9° in 2019.
Grantsville’s center stands about 710 ft above sea level. Within three miles the land runs from 680 ft to 1,180 ft, a difference of 500 ft: hilly country. The highest named summit within 15 miles is Big Pine Knob, about 1,420 ft, 12 miles east.
Under the town center the state geologic map shows Monongahela Group (sandstone, siltstone, shale), from the Carboniferous, 299 to 324 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 30×. 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, siltstone, shale. Age: Carboniferous to Permian, 252 to 324 million years old. About 13 mi of the line.
Sandstone, siltstone, shale. Age: Carboniferous, 299 to 324 million years old. About 12 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 Grantsville reaches the Gulf of America by way of Philip Run, the Little Kanawha, the Ohio and the Mississippi: about 1,840 river miles.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Grantsville; river miles along the main stem, rounded.
Grantsville has a hot-summer humid continental climate. Summer afternoons average 83° in July; winter nights fall to about 22° in January. A normal year brings about 24 inches of snow; with the rain, that comes to about 47 inches of water.
On November 14 Grantsville normally reaches 54° and falls to 32°. The record high is 79°, in 1909; the record low 7°, in 1986. The most rain on this date, 0.96 in, fell in 1993.
Normals 1991–2020 and records since 1892 at Spencer, 17 miles west-southwest, 260 ft higher. NOAA, through RCC-ACIS.
