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Datolite Rock Hunting at Caledonia Mine, Michigan - Houghton, Michigan

Datolite Rock Hunting at Caledonia Mine, Michigan

Ontonagonmoderate

Difficulty

moderate

Duration

2–4 hours

Fitness Level

Participants should be in good physical shape able to lift, dig, bend, and sift for extended periods.

Overview

At Caledonia Mine in Michigan’s Upper Peninsula, the Datolite Pile invites rock hunters on a 2-4 hour hands-on quest to uncover rare datolite and other specimens from a hand-dug ore pile. Ready your shovel and screen for a uniquely active mineral adventure.

Ontonagon, Michigan

Datolite Pile

1.5 Cubic Yards • Recommended for 1-2 People • 2-4 Hours

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About This Adventure

Dive into an exhilarating rock-hunting adventure at our unique quarry! Spend 2-4 hours sifting through a hand-dug pile, searching for datolite and other rare specimens. This physically engaging experience is perfect for rock enthusiasts aged 14-60, promising a memorable day of discovery and excitement in nature.

A Great Activity for Rock Lovers!

Duration

2-4 Hours

About

This 1.5 cubic yard pile is one of our most unique and exciting across the quarry! The maximum is 2 adults and no more can be added. The ore for this pile is hand dug from a specific spot in the mine. You will be searching strictly for datolite, using a screen and a shovel. Other specimens like copper and silver can be found, but they will be very small.

More info

The piles do involve lifting, digging, breaking rocks, and physical activity. We recommend people in good physical condition (14 yrs-60 yrs), but we understand each individual has different limitations. We do not restrict anyone, we simply ask that they specify.

What to bring

Required:

  • Closed-toed shoes

Recommended:

  • Gloves and goggles
  • A metal detector
  • Weather appropriate clothing

Adventure Tips

Wear sturdy closed-toed shoes

The quarry terrain is uneven and rocky; footwear with solid support and protection is essential for safety.

Bring gloves and goggles

Protect your hands and eyes while digging and breaking rock to avoid injury from sharp fragments.

Be prepared for physical activity

This experience requires lifting, digging, and sifting—moderate fitness is recommended to enjoy the full session.

Book in advance for limited spots

Only 1-2 participants per session are allowed to maximize the experience; reserve early to secure your spot.

Local Insights

Wildlife

  • White-tailed deer often forage near the quarry edge
  • Red-tailed hawks frequently soar overhead hunting small mammals

History

Caledonia Mine has historic significance as one of the key copper mining operations in Michigan’s Upper Peninsula during the late 19th and early 20th centuries.

Conservation

Caledonia Mine emphasizes safe and responsible mineral collecting, practicing minimal-impact techniques to preserve the quarry environment for future enthusiasts.

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Adventure Hotspots in Houghton, Michigan

Frequently Asked Questions

Recommended Gear

Closed-toed hiking shoes or boots

Essential

Protect your feet and provide stable footing on uneven quarry surfaces.

Work gloves

Essential

Shield your hands from sharp rocks and debris during digging and screening.

Protective goggles

Essential

Prevent dust and rock chips from injuring your eyes when breaking apart ore.

Weather-appropriate layers

Dress in layers to stay comfortable through fluctuating temperatures and weather conditions.

spring|fall|summer|winter specific