The Lumberton 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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−10° on Nov. 13, 2000, the coldest reading for this week of the year since 1893. Next is −9° in 1955.
Lumberton’s center stands about 6,850 ft above sea level. Within three miles the land runs from 6,790 ft to 7,880 ft, a difference of 1,090 ft: steep hill country. The highest named summit within 15 miles is Chromo Mountain, about 9,830 ft, 11 miles east.
Under the town center the state geologic map shows Lewis Shale (mudstone, shale), from the Late Cretaceous, 72 to 84 million years old.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 9×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Mudstone, shale. Age: Late Cretaceous, 72 to 84 million years old. About 9 mi of the line.
Sandstone, siltstone, shale. Age: Late Cretaceous, 72 to 94 million years old. About 7 mi of the line.
Sandstone, shale. Age: Late Cretaceous, 66 to 100 million years old. About 3 mi of the line.
Mafic-hypabyssal, felsic-hypabyssal. Age: Eocene to Miocene, 5.3 to 56 million years old. About 3 mi of the line.
Shale, sandstone. Age: Late Cretaceous, 66 to 100 million years old. About 0.5 mi of the line.
Arkose, shale, conglomerate. Age: Late Cretaceous to Paleocene, 56 to 100 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. 3 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 Lumberton reaches the Gulf of California by way of Webb Creek, Amargo Creek, the Navajo, the San Juan and the Colorado: about 1,220 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 Lumberton; river miles along the main stem, rounded.
Lumberton has a warm-summer humid continental climate. Summer afternoons average 80° in July; winter nights fall to about 7° in January. A normal year brings about 92 inches of snow; with the rain, that comes to about 22 inches of water.
On November 14 Lumberton normally reaches 48° and falls to 18°. The record high is 74°, in 1894; the record low −6°, in 1938. The most rain on this date, 1.26 in, fell in 1993.
Normals 1991–2020 and records since 1893 at Chama, 20 miles east, 1,000 ft higher. NOAA, through RCC-ACIS.
