The Green Sea 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.
Sunny
Sunny; warmer
Mostly sunny
Sunny
Mostly sunny
Sunny
Mostly sunny
Green Sea’s center stands about 90 ft above sea level. Within three miles the land runs from 70 ft to 140 ft, a difference of 70 ft: gently rolling country.
Under the town center the state geologic map shows Bear Bluff Formation (sand, limestone), from the Tertiary, 2.6 to 66 million years old.
The section below crosses 5 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, gravel. Age: Quaternary, less than 2.6 million years old. About 7 mi of the line.
Limestone, sand. Age: Pleistocene, less than 2.6 million years old. About 5 mi of the line.
Sand, clay. Age: Cretaceous, 66 to 145 million years old. About 4 mi of the line.
Sand, limestone. Age: Tertiary, 2.6 to 66 million years old. About 4 mi of the line.
Clay. Age: Tertiary, 2.6 to 66 million years old. About 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 Green Sea reaches the Atlantic Ocean by way of Rooty Branch, the Little Pee Dee, the Great Pee Dee, Schooner Creek and the Waccamaw: about 110 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Green Sea; river miles along the main stem, rounded.
