The Dumas 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.
Showers likely
Showers likely
Partly cloudy
Partly cloudy
Mostly sunny; warmer
Mostly sunny
Mostly sunny
Dumas’s center stands about 3,660 ft above sea level. Within three miles the land runs from 3,530 ft to 3,700 ft, a difference of 170 ft: gently rolling country.
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 31×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand. Age: Pleistocene, less than 2.6 million years old. About 15 mi of the line.
Sand. Age: Late Miocene to Pliocene, 2.6 to 12 million years old. About 7 mi of the line.
Sand. Age: Holocene, less than 12,000 years old. About 2 mi of the line.
Sandstone-mudstone. Age: Permian, 252 to 299 million years old. About 0.4 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 Dumas reaches the Gulf of America by way of South Palo Duro Creek, Palo Duro Creek, the Beaver, the North Canadian, the Canadian, the Arkansas and the Mississippi: about 1,750 river miles.
Lakes on the way: Canton 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 Dumas; river miles along the main stem, rounded.
