The Urbank 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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−8° on Nov. 14, 1959, the coldest reading for this week of the year since 1940. Next is −5° in 1940.
Urbank’s center stands about 1,450 ft above sea level. Within three miles the land runs from 1,400 ft to 1,570 ft, a difference of 170 ft: gently rolling country. The highest named summit within 15 miles is Inspiration Peak, about 1,720 ft, 3 miles west-northwest.
Under the town center the state geologic map shows Schist of sedimentary protolith, from the Neoarchean, 2.5 to 2.8 billion years old.
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 55×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Schist. Age: Neoarchean, 2.5 to 2.8 billion years old. About 20 mi of the line.
Gabbro, peridotite, pyroxenite. Age: Neoarchean, 2.5 to 2.8 billion years old. About 4 mi of the line.
Age: Paleoproterozoic, 1.8 to 2 billion 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 Urbank reaches the Gulf of America by way of Wolf Creek, the Chippewa, the Minnesota and the Mississippi: about 2,250 river miles.
Lake on the way: Lake Pepin.
1,750 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Urbank; river miles along the main stem, rounded.
Urbank has a dry-winter warm-summer continental climate. Summer afternoons average 80° in July; winter nights fall to about 2° in January. About 24 inches of rain fall in a normal year.
On November 14 Urbank normally reaches 38° and falls to 24°. The record high is 69°, in 1953; the record low −8°, in 1959. The most rain on this date, 0.22 in, fell in 1951.
Normals 1991–2020 and records since 1940 at Alexandria Chandler Field, 19 miles south-southeast. NOAA, through RCC-ACIS.
