Union Ridge
Ridge in Houston County, Minnesota · on the USGS Caledonia quadrangle
43.70109, -91.46182
Maps that show Union Ridge
Get them in the map app
Caledonia, MN
Detailed map of terrain, trails and roads
USGS topo, 2022

Brownsville, MN
Old map for history, not navigation
USGS historical 15-minute topo (1956)

Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)

IFR Enroute Low Altitude Chart L-28 (U.S.)
FAA, 2026-10-29

IFR Enroute High Altitude Chart H-02 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).