Upper Flat
Lake in Iberville County, Louisiana · on the USGS Grosse Tete SW quadrangle
30.25212, -91.49922
Maps that show Upper Flat
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Grosse Tete SW, LA
USGS topo, 2024
Grosse Tete, LA
USGS historical 15-minute topo (1940)
Grosse Tete, LA
USGS historical 15-minute topo (1962)
U.S. Fish and Wildlife Service Alligator Snapping Turtle Range (2024)
Fish & Wildlife Service Refuge Maps (public domain)
Bureau of Land Management Eastern States Overview map
BLM Eastern States (2019)
IFR Enroute Low Altitude Chart L-22 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-07 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-21 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).