The Beaver 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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Beaver’s center stands about 5,910 ft above sea level. Within three miles the land runs from 5,740 ft to 6,460 ft, a difference of 720 ft: hilly country. The highest named summit within 15 miles is Mount Baldy, about 12,010 ft, 14 miles northeast.
Under the town center the state geologic map shows Alluvium and colluvium (unconsolidated), from the Quaternary, 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 4×. 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: Quaternary, less than 2.6 million years old. About 8 mi of the line.
Felsic-volcanic. Age: Late Oligocene to Middle Miocene, 12 to 28 million years old. About 7 mi of the line.
Coarse-detrital. Age: Quaternary, less than 2.6 million years old. About 4 mi of the line.
Quartz-monzonite. Age: Early Oligocene to Early Miocene, 16 to 34 million years old. About 3 mi of the line.
Conglomerate-sandstone. Age: Miocene to Pliocene, 2.6 to 23 million years old. About 2 mi of the line.
Basalt. Age: Early Miocene to Middle Miocene, 12 to 23 million years old. About 0.5 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.
A raindrop that lands in Beaver reaches Sevier Lake by way of Big Slough, the Beaver, the Old Channel Sevier and the Sevier: about 150 river miles. Sevier Lake has no outlet to the sea: the water leaves only by evaporating or soaking into the ground.
120 miles of the trip are on the Beaver.
Often dry. About 80% of the way is mapped as streams that run only after rain or snowmelt; the water makes the whole trip in floods.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Beaver; river miles along the main stem, rounded.
