The Lake Lakengren 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.
Lake Lakengren’s center stands about 1,060 ft above sea level. Within three miles the land runs from 980 ft to 1,160 ft, a difference of 180 ft: gently rolling country.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 40×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Dolostone. Age: Silurian, 425 to 445 million years old. About 11 mi of the line.
Shale, limestone. Age: Late Ordovician, 445 to 454 million years old. About 11 mi of the line.
Shale, limestone. Age: Late Ordovician, 445 to 454 million years old. About 3 mi of the line.
Dolostone, limestone, shale. Age: Silurian, 422 to 445 million years old. About 0.6 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 Lake Lakengren reaches the Gulf of America by way of Paint Creek, Sevenmile Creek, Four Mile Creek, the Great Miami, the Ohio and the Mississippi: about 1,520 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 Lake Lakengren; river miles along the main stem, rounded.
Lake Lakengren 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 Lake Lakengren 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, 4 miles northeast. NOAA, through RCC-ACIS.
