The Bivins 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.
21° on Nov. 13, 2019, the coldest reading for this week of the year since 1947. Next is 23° in 1997.
Bivins’s center stands about 300 ft above sea level. Within three miles the land runs from 230 ft to 400 ft, a difference of 170 ft: gently rolling country. The highest named summit within 15 miles is Hickory Hill, about 460 ft, 14 miles north.
Under the town center the state geologic map shows Queen City Sand (siltstone, sandstone), from the Middle Eocene, 38 to 48 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.
Siltstone, sandstone. Age: Middle Eocene, 38 to 48 million years old. About 16 mi of the line.
Sandstone. Age: Middle Eocene, 38 to 48 million years old. About 4 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 1 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 1 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 0.8 mi of the line.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 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 Bivins reaches the Gulf of America by way of Leek Creek, Frazier Creek, James Bayou, Twelvemile Bayou, Cross Bayou, the Red River, the Atchafalaya and the Lower Atchafalaya: about 470 river miles.
Lake on the way: Clear Lake.
260 miles of the trip are on the Red River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Bivins; river miles along the main stem, rounded.
Bivins has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 35° in January. About 51 inches of rain fall in a normal year.
On November 14 Bivins normally reaches 65° and falls to 45°. The record high is 81°, in 2005; the record low 22°, in 2019. The most rain on this date, 1.60 in, fell in 1970.
Normals 1991–2020 and records since 1947 at Wright Patman Dm & Lk, 20 miles north. NOAA, through RCC-ACIS.