The Trout Lake 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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68° on Nov. 17, 2001, the hottest reading for this week of the year since 1915. Next is 67° in 1953.
Trout Lake’s center stands about 1,310 ft above sea level. Within three miles the land runs from 1,280 ft to 1,450 ft, a difference of 170 ft: gently rolling country.
Under the town center the state geologic map shows Coleraine Formation (conglomerate, lignite, sandstone), from the Late Cretaceous, 94 to 100 million years old.
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 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.
Slate, graywacke. Age: Paleoproterozoic, 1.6 to 2 billion years old. About 10 mi of the line.
Tonalite, granodiorite, diorite. Age: Neoarchean, 2.5 to 2.8 billion years old. About 7 mi of the line.
Conglomerate, lignite, sandstone. Age: Late Cretaceous, 94 to 100 million years old. About 6 mi of the line.
Banded-iron-formation, sedimentary-breccia. Age: Paleoproterozoic, 1.8 to 2 billion 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.
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 Trout Lake reaches the Gulf of America by way of Trout Creek, the Swan River and the Mississippi: about 2,170 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 Trout Lake; river miles along the main stem, rounded.
Trout Lake has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about −1° in January. A normal year brings about 60 inches of snow; with the rain, that comes to about 29 inches of water.
On November 14 Trout Lake normally reaches 37° and falls to 21°. The record high is 65°, in 1953; the record low −9°, in 1959. The most rain on this date, 0.54 in, fell in 1951.
Normals 1991–2020 and records since 1915 at Grand Rapids Forestry Lab, 5 miles west. NOAA, through RCC-ACIS.
