The Tushka 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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Tushka’s center stands about 620 ft above sea level. Within three miles the land runs from 540 ft to 680 ft, a difference of 140 ft: gently rolling country. The highest named summit within 15 miles is Flagpole Mountain, about 900 ft, 11 miles northwest.
Under the town center the state geologic map shows Antlers Sand or Antlers Sandstone, from the Early Cretaceous, 100 to 145 million years old.
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.
Sandstone. Age: Early Cretaceous, 100 to 145 million years old. About 13 mi of the line.
Fine-detrital. Age: Holocene, less than 12,000 years old. About 7 mi of the line.
Sandstone. Age: Carboniferous, 299 to 324 million years old. About 3 mi of the line.
Sandstone, limestone, dolostone. Age: Cambrian, 487 to 497 million years old. About 0.2 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale.
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 Tushka reaches the Gulf of America by way of Fronterhouse Creek, Clear Boggy Creek, Muddy Boggy Creek, the Red River, the Atchafalaya and the Lower Atchafalaya: about 790 river miles.
590 miles of the trip are on the Red River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Tushka; river miles along the main stem, rounded.
