
COMING SOON: Keweenaw Historic GeoTrail!
This twenty cache trail will lead you on an adventure through Keweenaw National Historical Park and many of its partner Heritage Sites. We hope you enjoy the beautiful sights as you explore the copper mining history, connect with the people involved, and discover the unique geology that made it possible. Don't forget to record the portion of the cypher key hidden in this cache. Click or scan the QR code to download the Keweenaw Historic GeoTrail Passport, or click here to learn more.
NOTICE: This cache is placed with permission of Adventure Mining Company. Rock collecting and artifact collecting are both strictly forbidden. Please be respectful of the grounds ; failing to do so may jeopardize the future of geocaching at this site.
An adit is any near horizontal access to a mine. They are driven into hillsides for various reasons such as direct access to a lower level, as an aid in ventilation, and/or to allow for natural drainage of an existing mine. They are also a tool for exploratory mining, often following a mineral vein outcropping in the given location. These exploratory adits often end abruptly never connecting to a more complex network of mines.
The copper mines of the Keweenaw are no longer active, but many of these adits are still actively used. A few are now utilized for tours, such as those offered here by the Adventure Mining Company, and many have become the winter residences of our bat population.