The Cambria 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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Cambria’s center stands about 70 ft above sea level. Within three miles the land runs from 10 ft to 660 ft, a difference of 650 ft: hilly country. Open water lies within three miles. The highest named summit within 15 miles is Pine Mountain, about 3,610 ft, 9 miles north.
Under the town center the state geologic map shows Upper Cretaceous and Paleocene marine rocks, undivided (sandstone), from the Late Cretaceous to Paleocene, 56 to 100 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 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.
Sandstone, mudstone. Age: Jurassic to Cretaceous, 66 to 202 million years old. About 8 mi of the line.
Sandstone. Age: Late Cretaceous to Paleocene, 56 to 100 million years old. About 3 mi of the line.
Coarse-detrital. Age: Pleistocene, less than 2.6 million years old. About 2 mi of the line.
Sandstone, mudstone. Age: Oligocene to Pliocene, 2.6 to 34 million years old. About 0.8 mi of the line.
Serpentinite. Age: Middle Jurassic to Late Jurassic, 145 to 175 million years old. About 0.8 mi of the line.
Hypabyssal-rhyolite. Age: Early Miocene, 16 to 18 million years old. About 0.3 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.
A raindrop that lands in Cambria reaches the Pacific Ocean by way of Santa Rosa Creek: about 1 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Cambria; river miles along the main stem, rounded.
