The Eunice 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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Eunice’s center stands about 3,450 ft above sea level. Within three miles the land runs from 3,350 ft to 3,510 ft, a difference of 160 ft: gently rolling country.
Under the town center the state geologic map shows Eolian and piedmont deposits (unconsolidated), from the Pleistocene to Holocene, less than 0.8 million years old.
The section below crosses 5 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 61×. 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 0.8 million years old. About 16 mi of the line.
Sand. Age: Middle Miocene to Early Pliocene, 3.6 to 16 million years old. About 3 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 0.1 million years old. About 3 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 0.8 million years old. About 2 mi of the line.
Unconsolidated. Age: Pleistocene to Holocene, less than 2.6 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.
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 Eunice reaches the Gulf of America by way of the Pecos and the Rio Grande: about 1,000 river miles.
Lakes on the way: Paz Ramirez Lake and Amistad Reservoir.
290 miles of the trip are on the Pecos.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Eunice; river miles along the main stem, rounded.
