The Ocean 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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Ocean’s center stands about 70 ft above sea level. Within three miles the land runs from 0 ft to 150 ft, a difference of 150 ft: gently rolling country. Open water lies within three miles.
Under the town center the state geologic map shows Cohansey Formation (sand), from the Middle Miocene, 12 to 14 million years old.
The section below crosses 2 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 64×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Sand. Age: Middle Miocene, 12 to 14 million years old. About 13 mi of the line.
Clay, sand. Age: Early Miocene to Middle Miocene, 14 to 20 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.
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 Ocean reaches the Atlantic Ocean by way of Waretown Creek: about 2 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Ocean; river miles along the main stem, rounded.
