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.
Fremont’s center stands about 760 ft above sea level. Within three miles the land runs from 730 ft to 860 ft, a difference of 130 ft: gently rolling country. The highest named summit within 15 miles is Mosquito Hill, about 1,010 ft, 12 miles northeast.
Under the town center the state geologic map shows Cambrian, undivided (sandstone), from the Cambrian, 487 to 542 million years old.
The section below crosses 3 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. Age: Cambrian, 487 to 542 million years old. About 14 mi of the line.
Rhyolite, mixed-clastic. Age: Paleoproterozoic, 1.6 to 2.5 billion years old. About 6 mi of the line.
Granite. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 2 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 Lake Michigan by way of the Wolf River and the Fox River: about 90 river miles. From there it moves on through the Great Lakes, over Niagara Falls and down the St. Lawrence to the Atlantic.
Lakes on the way: Lake Winnebago 6124, Lake Winneconne and Lake Butte des Morts.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Fremont; river miles along the main stem, rounded.