Where: Iowa · North America · approx. 41.72, -91.56 (vicinity only)
Why this spot: Devonian
What turns up: Brachiopods, corals and crinoids at the Devonian Fossil Gorge below the spillway
Access: Open / legal.
Corps of Engineers Devonian Fossil Gorge; LOOK but collecting PROHIBITED at the gorge itself, allowed in nearby public quarries with permission.
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.