The Gleneagle 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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78° on Nov. 17, 1981, the hottest reading for this week of the year since 1894. Next is 78° in 2016.
Gleneagle’s center stands about 6,880 ft above sea level. Within three miles the land runs from 6,560 ft to 7,520 ft, a difference of 960 ft: steep hill country. The highest named summit within 15 miles is Ormes Peak, about 9,690 ft, 9 miles southwest.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 7×. 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 15 mi of the line.
Granite, alkali-feldspar-granite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 7 mi of the line.
Gravel, unconsolidated. Age: Pleistocene, 0.2 to 1.6 million years old. About 1 mi of the line.
Limestone, dolostone, quartzite. Age: Cambrian to Ordovician, 445 to 542 million years old. About 0.3 mi of the line.
Arkose, conglomerate. Age: Carboniferous to Permian, 252 to 324 million years old. About 0.3 mi of the line.
Arkose, shale, mudstone. Age: Late Cretaceous to Paleocene, 56 to 100 million years old. About 0.3 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 Gleneagle reaches the Gulf of America by way of Monument Creek, Fountain Creek, the Arkansas and the Mississippi: about 1,930 river miles.
Lakes on the way: Murray Lake and Ozark Lake.
970 miles of the trip are on the Arkansas.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Gleneagle; river miles along the main stem, rounded.
Gleneagle has a cold semi-arid climate. Summer afternoons average 87° in July; winter nights fall to about 19° in January. A normal year brings about 32 inches of snow; with the rain, that comes to about 16 inches of water.
On November 14 Gleneagle normally reaches 54° and falls to 26°. The record high is 77°, in 1936; the record low −12°, in 1916. The most rain on this date, 0.40 in, fell in 1993.
Normals 1991–2020 and records since 1894 from the Colorado Springs Area threaded record (Colorado Springs Municipal Airport, 18 miles south-southeast, 700 ft lower). NOAA, through RCC-ACIS.
