The Pine Bluff 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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87° on Nov. 13, 1955, the hottest reading for this week of the year since 1884. Next is 84° in 1941.
Pine Bluff’s center stands about 220 ft above sea level. Within three miles the land runs from 190 ft to 270 ft, a difference of 80 ft: gently rolling country. The highest named summit within 15 miles is Sanders Hill, about 450 ft, 14 miles northwest.
Under the town center the state geologic map shows Terrace deposits (coarse-detrital, fine-detrital), from the Pleistocene, less than 2.6 million years old.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 9 mi of the line.
Coarse-detrital, fine-detrital. Age: Holocene, less than 12,000 years old. About 7 mi of the line.
Marl. Age: Late Eocene, 34 to 38 million years old. About 4 mi of the line.
Coarse-detrital, fine-detrital. Age: Holocene, less than 12,000 years old. About 4 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 Pine Bluff reaches the Gulf of America by way of the Bayou Bartholomew, the Ouachita, the Black River, the Red River, the Atchafalaya and the Lower Atchafalaya: about 710 river miles.
350 miles of the trip are on the Bayou Bartholomew.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Pine Bluff; river miles along the main stem, rounded.
Pine Bluff has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 34° in January. About 51 inches of rain fall in a normal year.
On November 14 Pine Bluff normally reaches 63° and falls to 42°. The record high is 87°, in 1955; the record low 19°, in 1907. The most rain on this date, 2.45 in, fell in 1922.
Normals 1991–2020 and records since 1884 from the Pine Bluff Area threaded record (Pine Bluff Grider Field, 5 miles southeast). NOAA, through RCC-ACIS.
