Kempster Island
Island in Whiteside County, Illinois · on the USGS Hillsdale quadrangle
41.61142, -90.15234
Maps that show Kempster Island
Get them in the map app
Hillsdale, IL
Detailed map of terrain, trails and roads
USGS topo, 2024

Erie, IL
Old map for history, not navigation
USGS historical 15-minute topo (1952)

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-28 (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).