The Danforth 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.
Danforth’s center stands about 1,070 ft above sea level. Within three miles the land runs from 1,020 ft to 1,140 ft, a difference of 120 ft: gently rolling country.
Under the town center the state geologic map shows Chengwatana volcanic rocks (mafic-volcanic), from the Mesoproterozoic, 1 to 1.6 billion 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 50×. The colored band under the surface is the rock the state geologic map shows at the surface, not a picture of what lies beneath.
Mafic-volcanic. Age: Mesoproterozoic, 1 to 1.6 billion years old. About 12 mi of the line.
Volcanic. Age: Mesoproterozoic, 1 to 1.2 billion years old. About 5 mi of the line.
Sandstone, siltstone. Age: Mesoproterozoic, 1 to 1.2 billion years old. About 4 mi of the line.
Basalt. Age: Mesoproterozoic, 1 to 1.6 billion 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 Danforth reaches the Gulf of America by way of Thunder Creek, Crooked Creek, the Saint Croix and the Mississippi: about 1,920 river miles.
Lakes on the way: Lake Pepin and Lake Mallalieu 175.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Danforth; river miles along the main stem, rounded.