The Playas 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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Playas’s center stands about 4,480 ft above sea level. Within three miles the land runs from 4,290 ft to 5,180 ft, a difference of 890 ft: hilly country. The highest named summit within 15 miles is Hachita Peak, about 6,610 ft, 7 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 8 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 9×. 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 9 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 0.1 million years old. About 4 mi of the line.
Unconsolidated. Age: Late Pliocene to Pleistocene, 0.1 to 3.6 million years old. About 4 mi of the line.
Sandstone, conglomerate, shale. Age: Late Cretaceous, 66 to 100 million years old. About 3 mi of the line.
Sandstone, shale, limestone. Age: Middle Jurassic to Late Jurassic, 145 to 175 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.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 2 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.
