Where: Wisconsin · North America · approx. 45.4, -92.65 (vicinity only)
Why this spot: Rockhounding locality: agate in glacial gravel, western WI
What turns up: Lake Superior agate, quartz, jasper
Access: Gray area.
Collecting is prohibited within Interstate State Park; agates in the St. Croix Falls area must be sought in commercial gravel pits or on private land 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.