The Camanche North Shore 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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Camanche North Shore’s center stands about 340 ft above sea level. Within three miles the land runs from 210 ft to 620 ft, a difference of 410 ft: hilly country. The highest named summit within 15 miles is Jackson Butte, about 2,270 ft, 14 miles east-northeast.
Under the town center the state geologic map shows Miocene nonmarine rocks (sandstone, conglomerate), from the Oligocene to Pleistocene, less than 34 million years old.
The section below crosses 9 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 13×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Coarse-detrital. Age: Pleistocene to Holocene, less than 2.6 million years old. About 6 mi of the line.
Sandstone, conglomerate. Age: Oligocene to Pleistocene, less than 34 million years old. About 4 mi of the line.
Mafic-volcanic. Age: Jurassic, 145 to 202 million years old. About 3 mi of the line.
Slate, graywacke. Age: Triassic to Late Jurassic, 145 to 252 million years old. About 2 mi of the line.
Sandstone, conglomerate. Age: Miocene to Pleistocene, less than 23 million years old. About 2 mi of the line.
Sandstone. Age: Eocene, 34 to 56 million years old. About 1 mi of the line.
From the USGS State Geologic Map Compilation (Horton and others, 2017), the states’ geologic maps joined at a common scale. 3 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.
A raindrop that lands in Camanche North Shore reaches San Francisco Bay and the Pacific Ocean by way of Camanche Reservoir, the Mokelumne, the South Mokelumne, the San Joaquin and New York Slough: about 90 river miles.
Lake on the way: Camanche Reservoir.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Camanche North Shore; river miles along the main stem, rounded.
