Big Island
Island in Brown County, Texas · on the USGS Byrds quadrangle
31.95181, -99.06811
Maps that show Big Island
Get them in the map app
Byrds, TX
USGS topo, 2022
Grosvenor, TX
USGS historical 15-minute topo (1927)
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-17 (U.S.)
FAA, 2026-10-29
IFR Enroute Low Altitude Chart L-19 (U.S.)
FAA, 2026-10-29
IFR Enroute High Altitude Chart H-06 (U.S.)
FAA, 2026-10-29
Nearby
Name, class, county and location: USGS Geographic Names Information System (public domain).