The Windmill 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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Windmill’s center stands about 4,360 ft above sea level. Within three miles the land runs from 4,290 ft to 4,580 ft, a difference of 290 ft: rolling country. The highest named summit within 15 miles is Hachita Peak, about 6,610 ft, 14 miles southeast.
Under the town center the state geologic map shows Piedmont alluvial deposits (unconsolidated), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 7 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 15×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Unconsolidated. Age: Pleistocene to Holocene, less than 2.6 million years old. About 17 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 0.1 million years old. About 2 mi of the line.
Andesite, dacite. Age: Late Cretaceous to Paleocene, 56 to 100 million years old. About 2 mi of the line.
Granodiorite, quartz-monzonite. Age: Late Cretaceous to Paleocene, 56 to 100 million years old. About 1 mi of the line.
Felsic-volcanic, clastic, andesite. Age: Late Eocene to Early Oligocene, 28 to 38 million years old. About 0.9 mi of the line.
Sandstone, conglomerate, shale. Age: Late Cretaceous, 66 to 100 million years old. About 0.6 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 1 smaller unit 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.
