The Canaan 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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6° on Nov. 13, 2019, the coldest reading for this week of the year since 1938. Next is 8° in 1959.
Canaan’s center stands about 970 ft above sea level. Within three miles the land runs from 580 ft to 990 ft, a difference of 410 ft: hilly country.
Under the town center the state geologic map shows Louisville Limestone through Brassfield Limestone, from the Silurian, 422 to 445 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 31×. 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 13 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 4 mi of the line.
Dolostone. Age: Ordovician, 445 to 487 million years old. About 1 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 0.7 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 Canaan reaches the Gulf of America by way of Canaan Branch, Indian Kentuck Creek, the Ohio and the Mississippi: about 1,420 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 Canaan; river miles along the main stem, rounded.
Canaan has a hot-summer humid continental climate. Summer afternoons average 86° in July; winter nights fall to about 23° in January. A normal year brings about 17 inches of snow; with the rain, that comes to about 49 inches of water.
On November 14 Canaan normally reaches 56° and falls to 36°. The record high is 75°, in 1971; the record low 10°, in 1986. The most rain on this date, 1.80 in, fell in 1957.
Normals 1991–2020 and records since 1938 at North Vernon 2 ESE, 19 miles west-northwest, 250 ft lower. NOAA, through RCC-ACIS.
