The Wright City 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.
Wright City’s center stands about 410 ft above sea level. Within three miles the land runs from 370 ft to 570 ft, a difference of 200 ft: gently rolling country. The highest named summit within 15 miles is Old Glory Mountain, about 1,010 ft, 12 miles northeast.
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 12 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 36×. 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 6 mi of the line.
Sandstone, phyllite, shale. Age: Early Ordovician to Middle Ordovician, 459 to 487 million years old. About 4 mi of the line.
Chert, limestone, shale. Age: Middle Ordovician, 459 to 471 million years old. About 3 mi of the line.
Fine-detrital. Age: Holocene, less than 12,000 years old. About 3 mi of the line.
Limestone, shale, marlstone. Age: Early Cretaceous, 100 to 145 million years old. About 2 mi of the line.
Shale. Age: Early Cretaceous, 100 to 145 million 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. 6 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 Wright City reaches the Gulf of America by way of Cypress Creek, the Little River, the Red River, the Atchafalaya and the Lower Atchafalaya: about 660 river miles.
390 miles of the trip are on the Red River.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Wright City; river miles along the main stem, rounded.