The Denmark 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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0° on Nov. 17, 1959, the coldest reading for this week of the year since 1897. Next is 4° in 1940.
Denmark’s center stands about 720 ft above sea level. Within three miles the land runs from 540 ft to 730 ft, a difference of 190 ft: gently rolling country.
Under the town center the state geologic map shows Augusta Group (dolostone, limestone), from the Early Mississippian to Middle Mississippian, 331 to 359 million years old.
The section below crosses 7 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.
Dolostone, limestone. Age: Early Mississippian to Middle Mississippian, 331 to 359 million years old. About 11 mi of the line.
Dolostone, limestone. Age: Middle Mississippian to Late Mississippian, 324 to 347 million years old. About 5 mi of the line.
Dolostone, limestone, siltstone. Age: Early Mississippian, 347 to 359 million years old. About 3 mi of the line.
Limestone. Age: Middle Mississippian, 331 to 347 million years old. About 2 mi of the line.
Shale, siltstone. Age: Late Devonian, 359 to 374 million years old. About 2 mi of the line.
Limestone. Age: Early Mississippian to Middle Mississippian, 331 to 359 million years old. About 1 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit 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 Denmark reaches the Gulf of America by way of Lost Creek and the Mississippi: about 1,370 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Denmark; river miles along the main stem, rounded.
Denmark has a hot-summer humid continental climate. Summer afternoons average 85° in July; winter nights fall to about 16° in January. About 38 inches of rain fall in a normal year.
On November 14 Denmark normally reaches 50° and falls to 33°. The record high is 75°, in 1964; the record low 6°, in 1940. The most rain on this date, 1.26 in, fell in 1968.
Normals 1991–2020 and records since 1897 from the Burlington Area threaded record (Burlington Municipal Airport, 11 miles east). NOAA, through RCC-ACIS.
