The Cal-Nev-Ari 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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Cal-Nev-Ari’s center stands about 2,570 ft above sea level. Within three miles the land runs from 2,440 ft to 2,770 ft, a difference of 330 ft: rolling country. The highest named summit within 15 miles is Spirit Mountain, about 5,580 ft, 9 miles east-southeast.
Under the town center the state geologic map shows Alluvium, undifferentiated (coarse-detrital, fine-detrital), from the Pleistocene to Holocene, less than 2.6 million years old.
The section below crosses 6 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 6×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Coarse-detrital, fine-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 13 mi of the line.
Coarse-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 4 mi of the line.
Rhyolite, basalt. Age: Early Miocene to Early Pliocene, 4 to 22 million years old. About 3 mi of the line.
Andesite, dacite. Age: Miocene, 5.3 to 23 million years old. About 3 mi of the line.
Andesite, basalt. Age: Oligocene to Miocene, 5.3 to 34 million years old. About 0.9 mi of the line.
Volcanic. Age: Miocene, 5.3 to 23 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.
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.
