The Bluff City 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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15° on Nov. 13, 2019, the coldest reading for this week of the year since 1890. Next is 17° in 1959.
Bluff City’s center stands about 360 ft above sea level. Within three miles the land runs from 180 ft to 390 ft, a difference of 210 ft: rolling country.
Under the town center the state geologic map shows Wilcox Group (sand, fine-detrital), from the Early Eocene, 48 to 56 million years old.
The section below crosses 3 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.
Sand, fine-detrital. Age: Early Eocene, 48 to 56 million years old. About 15 mi of the line.
Coarse-detrital, fine-detrital. Age: Holocene, less than 12,000 years old. About 9 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 0.6 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 Bluff City reaches the Gulf of America by way of Henley Branch, the Little Missouri, the Ouachita, the Black River, the Red River, the Atchafalaya and the Lower Atchafalaya: about 540 river miles.
310 miles of the trip are on the Ouachita.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Bluff City; river miles along the main stem, rounded.
Bluff City has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 30° in January. About 57 inches of rain fall in a normal year, with about 3 inches of snow.
On November 14 Bluff City normally reaches 64° and falls to 40°. The record high is 84°, in 1955; the record low 15°, in 2019. The most rain on this date, 2.46 in, fell in 1980.
Normals 1991–2020 and records since 1890 at Prescott 2 NNW, 16 miles west-northwest. NOAA, through RCC-ACIS.
