The Satartia 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.
Satartia’s center stands about 110 ft above sea level. Within three miles the land runs from 80 ft to 380 ft, a difference of 300 ft: rolling country.
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 59×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Fine-detrital, coarse-detrital. Age: Holocene, less than 12,000 years old. About 12 mi of the line.
Clay. Age: Eocene, 34 to 56 million years old. About 12 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 Satartia reaches the Gulf of America by way of the Yazoo and the Mississippi: about 500 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Satartia; river miles along the main stem, rounded.