The Dell 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.
Partly cloudy
Mostly sunny
Mostly sunny
Mostly sunny
Mostly sunny
Mostly sunny
Mostly sunny
Dell City’s center stands about 3,700 ft above sea level. Within three miles the land runs from 3,640 ft to 3,810 ft, a difference of 170 ft: gently rolling country. The highest named summit within 15 miles is Cerro Diablo, about 5,610 ft, 13 miles west-southwest.
Under the town center the state geologic map shows Alluvium (fine-detrital, coarse-detrital), from the Holocene, less than 12,000 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 26×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 10 mi of the line.
Fine-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 7 mi of the line.
Limestone. Age: Permian, 252 to 299 million years old. About 4 mi of the line.
Clay, dolostone. 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.
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.
