The Arrey 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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86° on Nov. 14, 2017, the hottest reading for this week of the year since 1936. Next is 84° in 1973.
Arrey’s center stands about 4,190 ft above sea level. Within three miles the land runs from 4,120 ft to 4,460 ft, a difference of 340 ft: rolling country. The highest named summit within 15 miles is Timber Mountain, about 7,510 ft, 10 miles north-northeast.
Under the town center the state geologic map shows Piedmont alluvial deposits (unconsolidated), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 8 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 6×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Conglomerate-sandstone, coarse-detrital, fine-detrital. Age: Late Miocene to Pleistocene, 0.1 to 7.2 million years old. About 9 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 2.6 million years old. About 6 mi of the line.
Shale, limestone, mixed-clastic. Age: Carboniferous, 299 to 324 million years old. About 4 mi of the line.
Sedimentary. Age: Cambrian to Silurian, 422 to 542 million years old. About 2 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 0.1 million years old. About 1 mi of the line.
Clastic, unconsolidated. Age: Late Eocene to Oligocene, 23 to 38 million years old. About 1 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 2 smaller units along the line are not listed.
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 Arrey reaches the Gulf of America by way of the Rio Grande: about 1,360 river miles.
Lakes on the way: Paz Ramirez Lake and Amistad Reservoir.
750 miles of the trip are on the Rio Grande.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Arrey; river miles along the main stem, rounded.
Arrey has a cold semi-arid climate. Summer afternoons average 97° in June; winter nights fall to about 29° in January. About 11 inches of rain fall in a normal year.
On November 14 Arrey normally reaches 69° and falls to 37°. The record high is 86°, in 2017; the record low 22°, in 2018. The most rain on this date, 0.61 in, fell in 2003.
Normals 1991–2020 and records since 1936 at Caballo Dam, 3 miles north-northeast. NOAA, through RCC-ACIS.
