The Mancelona 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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74° on Nov. 11, 2022, the hottest reading for this week of the year since 1938. Next is 68° in 2020.
Mancelona’s center stands about 1,120 ft above sea level. Within three miles the land runs from 980 ft to 1,400 ft, a difference of 420 ft: hilly country. The highest named summit within 15 miles is Toll Hill, about 1,460 ft, 14 miles east-southeast.
The section below crosses 3 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 23×. 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. Age: Carboniferous, 324 to 359 million years old. About 16 mi of the line.
Shale. Age: Late Devonian, 359 to 384 million years old. About 6 mi of the line.
Black-shale. Age: Late Devonian, 359 to 384 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.
Mancelona has a warm-summer humid continental climate. Summer afternoons average 79° in July; winter nights fall to about 10° in February. A normal year brings about 132 inches of snow; with the rain, that comes to about 34 inches of water.
On November 14 Mancelona normally reaches 43° and falls to 28°. The record high is 64°, in 1999; the record low 13°, in 1995. The most rain on this date, 0.58 in, fell in 1957.
Normals 1991–2020 and records since 1938 at Kalkaska, 13 miles south-southwest. NOAA, through RCC-ACIS.
