The Utting 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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Utting’s center stands about 1,130 ft above sea level. Within three miles the land runs from 1,050 ft to 1,270 ft, a difference of 220 ft: rolling country. The highest named summit within 15 miles is Salome Peak, about 3,910 ft, 10 miles east.
Under the town center the state geologic map shows Holocene surficial deposits (silt, clay), from the Holocene, less than 10,000 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 7×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Silt, clay. Age: Holocene, less than 10,000 years old. About 8 mi of the line.
Sand, silt, clay. Age: Pleistocene to Holocene, less than 2 million years old. About 6 mi of the line.
Gravel, sand. Age: Pleistocene, less than 0.8 million years old. About 3 mi of the line.
Volcanic, clastic. Age: Early Oligocene to Late Miocene, 11 to 32 million years old. About 2 mi of the line.
Limestone, dolostone, quartzite. Age: Neoproterozoic to Early Triassic, 248 to 544 million years old. About 2 mi of the line.
Rhyolite, sandstone, conglomerate. Age: Early Jurassic to Late Jurassic, 160 to 200 million years old. About 2 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.
