The Letona 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.
Sunny
Partly cloudy; warmer
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87° on Nov. 13, 1955, the hottest reading for this week of the year since 1892. Next is 85° in 1964.
Letona’s center stands about 280 ft above sea level. Within three miles the land runs from 220 ft to 630 ft, a difference of 410 ft: hilly country. The highest named summit within 15 miles is Rigdon Mountain, about 950 ft, 13 miles north-northwest.
Under the town center the state geologic map shows Bloyd Shale, and Prairie Grove Member of the Hale Formation (shale, sandstone), from the Carboniferous, 299 to 324 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 28×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Shale, sandstone. Age: Carboniferous, 299 to 324 million years old. About 13 mi of the line.
Sandstone, black-shale. Age: Carboniferous, 299 to 324 million years old. About 11 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 Letona reaches the Gulf of America by way of Big Creek, the Little Red, the White River and the Mississippi: about 840 river miles.
620 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Letona; river miles along the main stem, rounded.
Letona has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 30° in January. About 52 inches of rain fall in a normal year, with about 2 inches of snow.
On November 14 Letona normally reaches 62° and falls to 41°. The record high is 83°, in 1964; the record low 16°, in 1940. The most rain on this date, 2.77 in, fell in 1957.
Normals 1991–2020 and records since 1892 at Searcy, 9 miles southeast. NOAA, through RCC-ACIS.
