The Hebron Estates 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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13° on Nov. 17, 1959, the coldest reading for this week of the year since 1872. Next is 15° in 1986.
Hebron Estates’s center stands about 550 ft above sea level. Within three miles the land runs from 440 ft to 630 ft, a difference of 190 ft: gently rolling country. The highest named summit within 15 miles is Dawson Knob, about 990 ft, 11 miles southwest.
Under the town center the state geologic map shows Louisville Limestone and Waldron Shale, undivided, from the Silurian, 422 to 445 million years old.
The section below crosses 9 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.
Limestone. Age: Silurian, 422 to 445 million years old. About 5 mi of the line.
Dolostone. Age: Ordovician, 445 to 487 million years old. About 5 mi of the line.
Shale. Age: Devonian to Carboniferous, 324 to 422 million years old. About 5 mi of the line.
Dolostone. Age: Silurian, 422 to 445 million years old. About 2 mi of the line.
Limestone. Age: Carboniferous, 324 to 359 million years old. About 2 mi of the line.
Sand, silt. Age: Pleistocene to Holocene, less than 2.6 million years old. About 2 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 3 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 Hebron Estates reaches the Gulf of America by way of Cedar Creek, the Floyds Fork, the Salt River, the Ohio and the Mississippi: about 1,350 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 Hebron Estates; river miles along the main stem, rounded.
Hebron Estates has a humid subtropical climate. Summer afternoons average 89° in July; winter nights fall to about 28° in January. A normal year brings about 13 inches of snow; with the rain, that comes to about 48 inches of water.
On November 14 Hebron Estates normally reaches 58° and falls to 40°. The record high is 79°, in 1902; the record low 15°, in 1986. The most rain on this date, 1.44 in, fell in 1929.
Normals 1991–2020 and records since 1872 from the Louisville Area threaded record (Louisville International Airport, 9 miles north-northwest). NOAA, through RCC-ACIS.
