Big Island (historical)
Island in Scott County, Illinois · on the USGS Bedford quadrangle
39.59032, -90.56040
Maps that show Big Island (historical)
Get them in the map app
Bedford, IL
Detailed map of terrain, trails and roads
USGS topo, 2024
Griggsville, IL
Old map for history, not navigation
USGS historical 15-minute topo (1924)
Griggsville, IL
Old map for history, not navigation
USGS historical 15-minute topo (1926)
National Heritage Areas - NPS-wide
National Park Service Maps · NPS-wide
Network to Freedom Brochure Map - National Underground Railroad Network to Freedom Program
National Park Service Maps · National Underground Railroad Network to Freedom Program
Continental Glaciation Map - Tule Springs Fossil Beds National Monument
National Park Service Maps · Tule Springs Fossil Beds National Monument
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 High Altitude Chart H-05 (U.S.)
FAA, 2026-10-29
Name, class, county and location: USGS Geographic Names Information System (public domain).