The Garden Valley 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.
Garden Valley’s center stands about 1,100 ft above sea level. Within three miles the land runs from 960 ft to 1,300 ft, a difference of 340 ft: rolling country. The highest named summit within 15 miles is Bruce Mound, about 1,390 ft, 10 miles east.
Under the town center the state geologic map shows Cambrian, undivided (sandstone), from the Cambrian, 487 to 542 million years old.
Heights every 0.1 mile from the Copernicus GLO-90 surface model; vertical exaggeration about 45×. 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 24 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 Garden Valley reaches the Gulf of America by way of the North Branch Trempealeau, the Trempealeau and the Mississippi: about 1,780 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Garden Valley; river miles along the main stem, rounded.