The Nelsonville 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.
79° on Nov. 11, 2020, the hottest reading for this week of the year since 1896. Next is 75° in 2002.
Nelsonville’s center stands about 680 ft above sea level. Within three miles the land runs from 670 ft to 1,060 ft, a difference of 390 ft: rolling country. The highest named summit within 15 miles is Schultz Hill, about 1,150 ft, 10 miles west-northwest.
Under the town center the state geologic map shows Allegheny and Pottsville Groups, Undivided (shale, siltstone), from the Carboniferous, 299 to 324 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 44×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale, siltstone. Age: Carboniferous, 299 to 324 million years old. About 14 mi of the line.
Shale, siltstone, mudstone. Age: Carboniferous, 299 to 324 million years old. About 10 mi of the line.
Shale, siltstone, sandstone. Age: Devonian to Carboniferous, 324 to 422 million years old. About 0.7 mi of the line.
Shale, siltstone, mudstone. Age: Carboniferous, 299 to 324 million years old. About 0.3 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 Nelsonville reaches the Gulf of America by way of the Hocking, the Ohio and the Mississippi: about 1,800 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 Nelsonville; river miles along the main stem, rounded.
Nelsonville has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 19° in January. About 43 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1896 at Logan, 10 miles west-northwest. NOAA, through RCC-ACIS.