The Bellmont 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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Mostly cloudy
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Partly cloudy; warmer
Partly cloudy
Partly cloudy
Partly cloudy
Bellmont’s center stands about 2,340 ft above sea level. Within three miles the land runs from 1,320 ft to 2,360 ft, a difference of 1,040 ft: steep hill country. The highest named summit within 15 miles is Lyon Mountain, about 3,840 ft, 14 miles east-southeast.
Under the town center the state geologic map shows Pyroxene and/or hornblende granitic gneiss, from the Mesoproterozoic, 1 to 1.6 billion 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 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.
Gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 9 mi of the line.
Sandstone. Age: Cambrian, 487 to 497 million years old. About 8 mi of the line.
Charnockite, gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 6 mi of the line.
Charnockite, gneiss. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 0.9 mi of the line.
Unconsolidated. Age: Quaternary, less than 2.6 million years old. About 0.4 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.
