The Anthony 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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83° on Nov. 11, 1989, the hottest reading for this week of the year since 1896. Next is 83° in 1999.
Anthony’s center stands about 1,360 ft above sea level. Within three miles the land runs from 1,270 ft to 1,390 ft, a difference of 120 ft: gently rolling country.
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.
Siltstone, sandstone, shale. Age: Permian, 252 to 299 million years old. About 12 mi of the line.
Sand, silt, clay. Age: Pleistocene to Holocene, less than 2.6 million years old. About 9 mi of the line.
Silt. Age: Pleistocene to Holocene, less than 2.6 million years old. About 3 mi of the line.
Shale. Age: Permian, 252 to 299 million 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.
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 Anthony reaches the Gulf of America by way of Spring Creek, Bluff Creek, the Chikaskia, the Salt Fork Arkansas, the Arkansas and the Mississippi: about 1,320 river miles.
Lakes on the way: Murray Lake and Ozark Lake.
600 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Anthony; river miles along the main stem, rounded.
Anthony has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 22° in January. A normal year brings about 11 inches of snow; with the rain, that comes to about 33 inches of water.
On November 14 Anthony normally reaches 58° and falls to 35°. The record high is 77°, in 1973; the record low 9°, in 1940. The most rain on this date, 2.80 in, fell in 1931.
Normals 1991–2020 and records since 1896 at Anthony, here. NOAA, through RCC-ACIS.
