The Redkey 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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78° on Nov. 11, 2020, the hottest reading for this week of the year since 1893. Next is 76° in 1931.
Redkey’s center stands about 970 ft above sea level. Within three miles the land runs from 940 ft to 1,030 ft, a difference of 90 ft: gently rolling country.
Under the town center the state geologic map shows Pleasant Mills Formation (dolostone, limestone), from the Silurian, 422 to 445 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. 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 21 mi of the line.
Dolostone, limestone. Age: Silurian, 422 to 445 million years old. About 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 Redkey reaches the Gulf of America by way of Halfway Creek, the Mississinewa, the Wabash, Big Bayou, the Wabash River Old Channel, the Old Channel Wabash, the Ohio and the Mississippi: about 1,550 river miles.
Lake on the way: Mississinewa Lake.
970 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Redkey; river miles along the main stem, rounded.
Redkey has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 18° in January. A normal year brings about 21 inches of snow; with the rain, that comes to about 41 inches of water.
On November 14 Redkey normally reaches 52° and falls to 33°. The record high is 76°, in 1931; the record low 9°, in 1986. The most rain on this date, 3.01 in, fell in 1993.
Normals 1991–2020 and records since 1893 at Farmland 5 NNW, 7 miles south. NOAA, through RCC-ACIS.
