The Spring Glen 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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3° on Nov. 12, 2012, the coldest reading for this week of the year since 1980. Next is 4° in 2020.
Spring Glen’s center stands about 5,770 ft above sea level. Within three miles the land runs from 5,590 ft to 6,750 ft, a difference of 1,160 ft: steep hill country. The highest named summit within 15 miles is Star Point, about 9,910 ft, 15 miles southwest.
Under the town center the state geologic map shows Mancos Shale, from the Late Cretaceous, 72 to 100 million years old.
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 5×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale. Age: Late Cretaceous, 72 to 100 million years old. About 14 mi of the line.
Sandstone. Age: Late Cretaceous, 72 to 84 million years old. About 5 mi of the line.
Conglomerate, sandstone. Age: Late Cretaceous to Paleocene, 56 to 84 million years old. About 3 mi of the line.
Coarse-detrital. Age: Quaternary, less than 2.6 million years old. About 1 mi of the line.
Unconsolidated. Age: Quaternary, less than 2.6 million years old. About 0.6 mi of the line.
Sandstone-mudstone. Age: Early Eocene to Middle Eocene, 38 to 56 million years old. About 0.5 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 Spring Glen reaches the Gulf of California by way of the Price, the Green River and the Colorado: about 1,230 river miles.
Lakes on the way: Lake Mead, Lake Powell, Lake Mohave and Lake Havasu.
Seldom reaches the sea. Dams and canals now take nearly all of the Colorado before its old delta in Mexico.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Spring Glen; river miles along the main stem, rounded.
Spring Glen has a cold semi-arid climate. Summer afternoons average 91° in July; winter nights fall to about 8° in January. A normal year brings about 22 inches of snow; with the rain, that comes to about 9 inches of water.
Normals 1991–2020 and records since 1980 at Wellington 3 E, 10 miles southeast, 380 ft lower. NOAA, through RCC-ACIS.
