The Tonkawa Tribal Housing 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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87° on Nov. 16, 2016, the hottest reading for this week of the year since 1948. Next is 82° in 1949.
Tonkawa Tribal Housing’s center stands about 980 ft above sea level. Within three miles the land runs from 940 ft to 1,020 ft, a difference of 80 ft: gently rolling country.
Under the town center the state geologic map shows Wellington Formation (shale, sandstone, conglomerate), from the Permian, 252 to 299 million years old.
The section below crosses 3 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.
Shale, sandstone, conglomerate. Age: Permian, 252 to 299 million years old. About 17 mi of the line.
Fine-detrital. Age: Holocene, less than 12,000 years old. About 6 mi of the line.
Coarse-detrital, fine-detrital. Age: Pleistocene, less than 2.6 million years old. About 0.8 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 Tonkawa Tribal Housing reaches the Gulf of America by way of the Chikaskia, the Salt Fork Arkansas, the Arkansas and the Mississippi: about 1,230 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 Tonkawa Tribal Housing; river miles along the main stem, rounded.
Tonkawa Tribal Housing has a humid subtropical climate. Summer afternoons average 93° in July; winter nights fall to about 24° in January. About 34 inches of rain fall in a normal year.
On November 14 Tonkawa Tribal Housing normally reaches 60° and falls to 37°. The record high is 80°, in 1973; the record low 12°, in 1959. The most rain on this date, 1.03 in, fell in 1985.
Normals 1991–2020 and records since 1948 at Ponca City Municipal Airport, 10 miles east-northeast. NOAA, through RCC-ACIS.
