The Iron 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.
Sunny
Mostly sunny; warmer
Mostly cloudy
Mostly sunny
Mostly sunny
Mostly sunny
Mostly sunny
Iron City’s center stands about 150 ft above sea level. Within three miles the land runs from 110 ft to 190 ft, a difference of 80 ft: gently rolling country.
Under the town center the state geologic map shows Ocala Limestone, from the Eocene, 34 to 56 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.
Limestone. Age: Eocene, 34 to 56 million years old. About 23 mi of the line.
Fine-detrital. Age: Quaternary, less than 2.6 million years old. About 0.3 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 Iron City reaches the Gulf of America by way of the Fishpond Drain, the Flint and the Apalachicola: about 140 river miles.
110 miles of the trip are on the Apalachicola.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Iron City; river miles along the main stem, rounded.
