The Parker 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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−11° on Nov. 13, 2014, the coldest reading for this week of the year since 1918. Next is −9° in 1955.
Parker’s center stands about 5,880 ft above sea level. Within three miles the land runs from 5,750 ft to 6,230 ft, a difference of 480 ft: hilly country. The highest named summit within 15 miles is Cherokee Mountain, about 6,640 ft, 10 miles west-southwest.
Under the town center the state geologic map shows Denver Fm or lower part of Dawson Arkose (arkose, shale, mudstone), from the Late Cretaceous to Paleocene, 56 to 100 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 17×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Arkose, conglomerate, shale. Age: Paleocene to Eocene, 34 to 66 million years old. About 9 mi of the line.
Unconsolidated. Age: Quaternary, less than 2.6 million years old. About 6 mi of the line.
Sand, silt. Age: Quaternary, less than 2.6 million years old. About 5 mi of the line.
Arkose, shale, mudstone. Age: Late Cretaceous to Paleocene, 56 to 100 million years old. About 2 mi of the line.
Sandstone, claystone. Age: Oligocene, 23 to 34 million years old. About 2 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 Parker reaches the Gulf of America by way of Cherry Creek, the South Platte, the Platte, the Missouri and the Mississippi: about 2,430 river miles.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Parker; river miles along the main stem, rounded.
Parker has a hot-summer humid continental climate. Summer afternoons average 87° in July; winter nights fall to about 17° in January. A normal year brings about 62 inches of snow; with the rain, that comes to about 18 inches of water.
On November 14 Parker normally reaches 55° and falls to 26°. The record high is 79°, in 1933; the record low −6°, in 2014. The most rain on this date, 0.78 in, fell in 1994.
Normals 1991–2020 and records since 1918 at Kassler, 18 miles west, 380 ft lower. NOAA, through RCC-ACIS.
