The Ashdown 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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4.82 inches of rain fell in two days, the most for this week of the year since records began in 1893. The next wettest, 3.95 inches, fell in 1985.
Ashdown’s center stands about 330 ft above sea level. Within three miles the land runs from 290 ft to 390 ft, a difference of 100 ft: gently rolling country.
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 7 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 10 mi of the line.
Coarse-detrital, fine-detrital. Age: Holocene, less than 12,000 years old. About 9 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Marlstone, sandstone. Age: Late Cretaceous, 66 to 100 million years old. About 2 mi of the line.
Clay, sand. Age: Paleocene to Eocene, 34 to 66 million years old. About 0.7 mi of the line.
Mudstone, sandstone. Age: Late Cretaceous, 66 to 100 million years old. About 0.4 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 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 Ashdown reaches the Gulf of America by way of Hurricane Creek, the Little River, the Red River, the Atchafalaya and the Lower Atchafalaya: about 560 river miles.
390 miles of the trip are on the Red River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Ashdown; river miles along the main stem, rounded.
Ashdown has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 32° in January. About 53 inches of rain fall in a normal year, with about 2 inches of snow.
On November 14 Ashdown normally reaches 64° and falls to 41°. The record high is 86°, in 1955; the record low 18°, in 2019. The most rain on this date, 3.25 in, fell in 1958.
Normals 1991–2020 and records since 1893 at Ashdown 4 SSE, 4 miles south-southeast. NOAA, through RCC-ACIS.
