easy
1–2 hours
Suitable for all fitness levels including families with children; minimal walking on uneven terrain.
Mystery Hill in Onsted, Michigan, offers interactive tours, gemstone mining, and fossil digs that challenge perception and connect visitors with the natural world. Perfect for families and curious adventurers alike.
Tours often fill quickly, especially on weekends and holidays, so securing your spot beforehand is recommended.
The grounds are uneven with various outdoor activity areas, so sturdy, closed-toed shoes will keep you comfortable.
Bring a small bag or container if you want to take home any gemstones or fossils you find during mining and digs.
Depending on the day, several activities may be outside with limited shade, so bring water especially on warmer months.
Mystery Hill incorporates natural rock formations and illusionary architecture that reflect regional geological curiosity and history.
The site promotes responsible outdoor interaction with minimal disturbance to the natural landscape during mining and fossil digs.
Provides support and protection on the uneven paths and digging areas.
Keeps you hydrated during outdoor activities, especially in warmer months.
spring|summer|fall specific
Sunglasses, hat, and sunscreen help guard against sun exposure while outside.
summer|spring|fall specific
Useful for carrying gemstones or fossils collected during mining and digging experiences.