The Bagley 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. 13, 1999, the hottest reading for this week of the year since 1937. Next is 72° in 1964.
Bagley’s center stands about 630 ft above sea level. Within three miles the land runs from 610 ft to 1,050 ft, a difference of 440 ft: hilly country. The highest named summit within 15 miles is Mondell Hill, about 1,150 ft, 10 miles north.
Under the town center the state geologic map shows Ancell Group (sandstone), from the Ordovician, 445 to 487 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 35×. 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: Ordovician, 445 to 487 million years old. About 9 mi of the line.
Dolostone, limestone. Age: Late Ordovician, 447 to 459 million years old. About 6 mi of the line.
Shale, dolostone. Age: Late Ordovician, 447 to 454 million years old. About 5 mi of the line.
Sandstone. Age: Ordovician, 445 to 487 million years old. About 4 mi of the line.
Dolostone, sandstone. Age: Early Ordovician to Late Ordovician, 454 to 487 million years old. About 0.4 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 Bagley reaches the Gulf of America by way of the Mississippi: about 1,600 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Bagley; river miles along the main stem, rounded.
Bagley has a hot-summer humid continental climate. Summer afternoons average 84° in July; winter nights fall to about 10° in January. A normal year brings about 34 inches of snow; with the rain, that comes to about 37 inches of water.
On November 14 Bagley normally reaches 47° and falls to 30°. The record high is 71°, in 1990; the record low 4°, in 1959. The most rain on this date, 0.61 in, fell in 1980.
Normals 1991–2020 and records since 1937 at Guttenberg L And D 10, 8 miles south. NOAA, through RCC-ACIS.
