The Spur 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.
92° on Nov. 16, 2025, the hottest reading for this week of the year since 1911. Next is 86° in 1927.
Spur’s center stands about 2,290 ft above sea level. Within three miles the land runs from 2,220 ft to 2,330 ft, a difference of 110 ft: gently rolling country. The highest named summit within 15 miles is Mackenzie Peak, about 2,860 ft, 11 miles north.
Under the town center the state geologic map shows Quartermaster Formation (shale), from the Permian, 252 to 299 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 29×. 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: Permian, 252 to 299 million years old. About 12 mi of the line.
Shale. Age: Middle Triassic to Late Triassic, 208 to 247 million years old. About 4 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 4 mi of the line.
Sand. Age: Pleistocene to Holocene, less than 2.6 million years old. About 3 mi of the line.
Sand. Age: Late Miocene to Pliocene, 2.6 to 12 million years old. About 0.7 mi of the line.
Sand. Age: Holocene, less than 12,000 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. 1 smaller unit 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 Spur reaches the Gulf of America by way of Duck Creek, the Salt Fork Brazos and the Brazos: about 1,040 river miles.
Lakes on the way: Possum Kingdom Lake and Lake Granbury.
550 miles of the trip are on the Brazos.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Spur; river miles along the main stem, rounded.
Spur has a humid subtropical climate. Summer afternoons average 95° in July; winter nights fall to about 26° in January. About 22 inches of rain fall in a normal year, with about 3 inches of snow.
On November 14 Spur normally reaches 66° and falls to 36°. The record high is 85°, in 2025; the record low 10°, in 1916. The most rain on this date, 0.82 in, fell in 1928.
Normals 1991–2020 and records since 1911 at Spur, here. NOAA, through RCC-ACIS.