Rockhounding in Ontonagon County, Michigan

2 mapped rockhounding spots in Ontonagon County. Most commonly produces keweenaw agates, adularia, chalcedony, chert.

Map showing 2 rockhounding spots in Ontonagon County, Michigan

Minerals reported in Ontonagon County

Spots in Ontonagon County

SpotMineralsCoordinatesAccess
Gull PointM 64
  • Keweenaw Agates
46.8361, -89.5495Public
Lake Superior BeachLakeshore Road46.8713, -89.3352Public

Other rockhounding counties in Michigan

Ontonagon County FAQ

Where can I rockhound in Ontonagon County, Michigan?+
RockHoundR tracks 2 rockhounding spots in Ontonagon County. Each entry below has coordinates, mineral notes, and access type. Always confirm local rules before collecting.
What rocks and minerals are common in Ontonagon County?+
Spots in Ontonagon County most often produce Keweenaw Agates, Adularia, Chalcedony, Chert, Jasper. Individual spots can vary widely.
Are these Ontonagon County rockhounding spots on public land?+
Most spots in this list are tagged public, but access can change with seasons, claims, and local closures. Always verify before driving out — links in the app open the right BLM, USFS, or county pages.

Plan a Ontonagon County rockhounding trip

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