The Brockway 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.
Brockway’s center stands about 840 ft above sea level. Within three miles the land runs from 750 ft to 1,030 ft, a difference of 280 ft: rolling country. The highest named summit within 15 miles is Bruce Mound, about 1,390 ft, 11 miles north-northeast.
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 33×. 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 Brockway reaches the Gulf of America by way of Levis Creek, the Black River, the Dodge Chute and the Mississippi: about 1,750 river miles.
Traced down the USGS NHDPlus V2.1 river network from the Census center point of Brockway; river miles along the main stem, rounded.