The Fremont 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.
Mostly sunny
Partly cloudy
Sunny
Sunny
Mostly sunny
Mostly sunny
Mostly sunny
Fremont’s center stands about 630 ft above sea level. Within three miles the land runs from 580 ft to 960 ft, a difference of 380 ft: rolling country. The highest named summit within 15 miles is Thorny Mountain, about 1,370 ft, 10 miles north.
Under the town center the state geologic map shows Gasconade Dolomite (dolostone), from the Early Ordovician, 471 to 487 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 27×. 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, chert. Age: Early Ordovician, 471 to 487 million years old. About 10 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 10 mi of the line.
Rhyolite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 2 mi of the line.
Dolostone. Age: Cambrian, 487 to 497 million years old. About 2 mi of the line.
Dolostone. Age: Early Ordovician, 471 to 487 million years old. About 0.6 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 Fremont reaches the Gulf of America by way of Little Pike Creek, Pike Creek, the Current, the Black River, the White River and the Mississippi: about 1,080 river miles.
620 miles of the trip are on the Mississippi.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Fremont; river miles along the main stem, rounded.
