The Lochbuie 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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−13° on Nov. 13, 2014, the coldest reading for this week of the year since 1973. Next is −3° in 2000.
Lochbuie’s center stands about 5,020 ft above sea level. Within three miles the land runs from 4,960 ft to 5,170 ft, a difference of 210 ft: rolling country. The highest named summit within 15 miles is Riley Mound, about 5,190 ft, 8 miles north.
Under the town center the state geologic map shows Older gravels and alluviums (gravel, unconsolidated), from the Pleistocene, 0.2 to 1.6 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 41×. 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, shale, mudstone. Age: Late Cretaceous to Paleocene, 56 to 100 million years old. About 13 mi of the line.
Sand, silt. Age: Quaternary, less than 2.6 million years old. About 5 mi of the line.
Gravel, unconsolidated. Age: Pleistocene, 0.2 to 1.6 million years old. About 3 mi of the line.
Shale, claystone, sandstone. Age: Late Cretaceous, 66 to 100 million years old. About 2 mi of the line.
Unconsolidated. Age: Quaternary, less than 2.6 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.
Lochbuie has a cold semi-arid climate. Summer afternoons average 90° in July; winter nights fall to about 16° in January. A normal year brings about 34 inches of snow; with the rain, that comes to about 14 inches of water.
On November 14 Lochbuie normally reaches 54° and falls to 26°. The record high is 81°, in 1990; the record low 0°, in 2014. The most rain on this date, 1.17 in, fell in 1994.
Normals 1991–2020 and records since 1973 at Brighton 3 SE, 8 miles southwest. NOAA, through RCC-ACIS.
