The Atlantic City 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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Mostly sunny; cooler
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Atlantic City’s center stands about 7,860 ft above sea level. Within three miles the land runs from 7,590 ft to 8,590 ft, a difference of 1,000 ft: steep hill country. The highest named summit within 15 miles is Cony Mountain, about 11,080 ft, 14 miles northwest.
Under the town center the state geologic map shows Metasedimentary rocks, from the Archean.
The section below crosses 4 rock units mapped at the surface.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 6×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Metasedimentary. Age: Archean. About 14 mi of the line.
Granodiorite. Age: Archean. About 8 mi of the line.
Sandstone, claystone, conglomerate. Age: Late Miocene, 5.3 to 12 million years old. About 1 mi of the line.
Gneiss, metagabbro, amphibolite. Age: Archean. 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.
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 Atlantic City reaches the Gulf of America by way of Rock Creek, the Sweetwater, the North Platte, the Platte, the Missouri and the Mississippi: about 2,740 river miles.
Lake on the way: Pathfinder Reservoir.
1,170 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Atlantic City; river miles along the main stem, rounded.
