Where: Iowa · North America · approx. 42.07, -90.17 (vicinity only)
Why this spot: 1899 historic-map era
What turns up: 1840s-1920s bottles, stoneware, shell heaps
Access: Gray area.
Riverbed and shore below ordinary high water are state sovereign lands; island lots are private.
Open in Mudlark Map →
Satellite view, historic-map overlays, tide/flow context and field notes are in the app. Exact research detail is part of Pro.
Pins are approximate by design. This page is historical research, not permission to dig. Check ownership and local law first.