The Good Pine 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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Good Pine’s center stands about 210 ft above sea level. Within three miles the land runs from 130 ft to 260 ft, a difference of 130 ft: gently rolling country.
Under the town center the state geologic map shows High Terraces (clay, silt, sand), from the Pleistocene, less than 2.6 million years old.
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 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.
Sandstone, sand, volcanic. Age: Oligocene, 23 to 34 million years old. About 10 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 million years old. About 7 mi of the line.
Clay. Age: Holocene, less than 12,000 years old. About 4 mi of the line.
Clay, silt, sand. Age: Pleistocene, less than 2.6 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 Good Pine reaches the Gulf of America by way of Trout Creek, the Little River, the Black River, the Red River, the Atchafalaya and the Lower Atchafalaya: about 280 river miles.
Lake on the way: Catahoula Lake.
100 miles of the trip are on the Atchafalaya.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Good Pine; river miles along the main stem, rounded.
