The Lenapah 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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12° on Nov. 12, 2019, the coldest reading for this week of the year since 1996. Next is 15° in 2018.
Lenapah’s center stands about 760 ft above sea level. Within three miles the land runs from 670 ft to 790 ft, a difference of 120 ft: gently rolling country. The highest named summit within 15 miles is Blue Mound, about 1,000 ft, 11 miles west-southwest.
Under the town center the state geologic map shows Seminole Formation (shale, sandstone, conglomerate), from the Carboniferous, 299 to 324 million years old.
The section below crosses 10 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.
Sandstone, shale. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Shale, sandstone, limestone. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Limestone, shale. Age: Carboniferous, 299 to 324 million years old. About 5 mi of the line.
Limestone, shale. Age: Carboniferous, 299 to 324 million years old. About 2 mi of the line.
Shale. Age: Carboniferous, 299 to 324 million years old. About 2 mi of the line.
Fine-detrital. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 4 smaller units 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 Lenapah reaches the Gulf of America by way of the Verdigris, the Arkansas and the Mississippi: about 1,130 river miles.
Lakes on the way: Oologah Lake, 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 Lenapah; river miles along the main stem, rounded.
Lenapah has a humid subtropical climate. Summer afternoons average 92° in July; winter nights fall to about 24° in January. About 40 inches of rain fall in a normal year.
Normals 1991–2020 and records since 1996 at Coffeyville Municipal Airport, 17 miles north-northeast. NOAA, through RCC-ACIS.
