Thayer Lake
Reservoir in Union County, Iowa · on the USGS Lorimor South quadrangle
41.02140, -94.06654
Maps that show Thayer Lake
Get them in the map app
Lorimor South, IA
USGS topo, 2022
Afton, IA
USGS historical 15-minute topo (1951)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-27 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-12 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).