Lake Afton
Reservoir in Union County, Iowa · on the USGS Afton quadrangle
41.03609, -94.20977
Maps that show Lake Afton
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Afton, 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).