The Georgetown 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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11° on Nov. 13, 1976, the coldest reading for this week of the year since 1896. Next is 13° in 1911.
Georgetown’s center stands about 930 ft above sea level. Within three miles the land runs from 630 ft to 990 ft, a difference of 360 ft: rolling country.
Under the town center the state geologic map shows Grant Lake Limestone and Fairview Formation, Undivided (limestone, shale), from the Late Ordovician, 445 to 459 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 35×. 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, dolostone. Age: Late Ordovician, 445 to 454 million years old. About 10 mi of the line.
Limestone, shale. Age: Late Ordovician, 445 to 459 million years old. About 7 mi of the line.
Shale. Age: Middle Ordovician to Late Ordovician, 445 to 471 million years old. About 3 mi of the line.
Limestone. Age: Ordovician, 445 to 487 million years old. About 1 mi of the line.
Sand, silt. Age: Pleistocene to Holocene, less than 2.6 million years old. About 1 mi of the line.
Limestone, shale. Age: Late Ordovician, 445 to 459 million years old. About 1.0 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit 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 Georgetown reaches the Gulf of America by way of Town Run, White Oak Creek, the Ohio and the Mississippi: about 1,530 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 Georgetown; river miles along the main stem, rounded.
Georgetown has a hot-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 23° in January. About 48 inches of rain fall in a normal year.
On November 14 Georgetown normally reaches 56° and falls to 34°. The record high is 81°, in 1955; the record low 14°, in 1986. The most rain on this date, 1.72 in, fell in 1951.
Normals 1991–2020 and records since 1896 at Maysville Wastewater Treatment Plant, 14 miles south-southeast, 420 ft lower. NOAA, through RCC-ACIS.
