The Independence 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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Independence’s center stands about 3,930 ft above sea level. Within three miles the land runs from 3,770 ft to 4,790 ft, a difference of 1,020 ft: steep hill country. The highest named summit within 15 miles is Mount Williamson, about 14,290 ft, 12 miles south-southwest.
Under the town center the state geologic map shows Quaternary alluvium and marine deposits (coarse-detrital), from the Pleistocene to Holocene, 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 2×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Granodiorite. Age: Permian to Tertiary, 2.6 to 260 million years old. About 11 mi of the line.
Coarse-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 9 mi of the line.
Dolostone, limestone. Age: Ordovician to Early Devonian, 394 to 487 million years old. About 2 mi of the line.
Sandstone, dolostone. Age: Neoproterozoic to Middle Devonian, 384 to 1,000 million years old. About 0.8 mi of the line.
Felsic-volcanic. Age: Triassic to Cretaceous, 66 to 252 million years old. About 0.6 mi of the line.
Shale, limestone. Age: Late Devonian to Permian, 273 to 384 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. 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.
