The College Corner 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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77° on Nov. 11, 2020, the hottest reading for this week of the year since 1915. Next is 75° in 1971.
College Corner’s center stands about 990 ft above sea level. Within three miles the land runs from 900 ft to 1,040 ft, a difference of 140 ft: gently rolling country.
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 47×. 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, limestone. Age: Late Ordovician, 445 to 454 million years old. About 8 mi of the line.
Limestone, shale. Age: Ordovician, 445 to 487 million years old. About 5 mi of the line.
Limestone, shale. Age: Ordovician, 445 to 487 million years old. About 5 mi of the line.
Shale, limestone. Age: Late Ordovician, 445 to 454 million years old. About 3 mi of the line.
Limestone. Age: Silurian, 422 to 445 million years old. About 2 mi of the line.
Shale, limestone. Age: Late Ordovician, 445 to 459 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.
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 College Corner reaches the Gulf of America by way of College Creek, West Fork Four Mile Run, Indian Creek, the Great Miami, the Ohio and the Mississippi: about 1,510 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 College Corner; river miles along the main stem, rounded.
College Corner has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 17° in January. About 43 inches of rain fall in a normal year.
On November 14 College Corner normally reaches 53° and falls to 31°. The record high is 72°, in 1958; the record low 4°, in 2019. The most rain on this date, 1.70 in, fell in 1972.
Normals 1991–2020 and records since 1915 at Eaton, 15 miles northeast. NOAA, through RCC-ACIS.
