Northern Mining Company

Northern Mining Company An unforgettable, family-friendly destination in the U.P. where real mining meets real adventure! At our site, mining for kids becomes a real adventure.

Built on decades of expertise, this hands-on gem mining experience was created to spark curiosity and deliver educational fun for kids and adults alike. Northern Mining Company is proudly part of Northern Sand & Gravel, a family-owned business that has been mining its own aggregates for over 46 years. We’ve supplied the materials to build strong foundations across the Upper Peninsula—and now, we’r

e using that same expertise to build something else: wonder. Visitors can pan for real gemstones, arrowheads, and fossils using our Mighty Sluice, all while learning how geology and mining shape the world we live in. It’s educational fun in Michigan that’s as exciting as it is enriching.

06/03/2026

Forget screen time. Try treasure time. 💎⛏️

We Are Open for the season!!
05/11/2026

We Are Open for the season!!

💎⛏️ Mining Season Begins Today! ⛏️💎

Northern Mining Company and the Mighty Sluice officially open TODAY during Free Play Sand Day!

Here’s the deal: Free play sand is FREE and perfect for sandboxes and backyard fun.

Gem mining is separate. To gem mine, you’ll purchase your mining rough inside The Warehouse, then head outside to the Mighty Sluice to wash away the dirt and uncover your treasures!

Kids can discover gemstones, crystals, emeralds, fossils, arrowheads, tumbled stones, and more.

It’s hands-on, messy-in-the-best-way fun, and the treasure hunt begins today!

📍 The Warehouse | Sault Ste. Marie
🕒 Open today 8am–3pm (and then during regular store hours for the rest of the season)
⛏️ Come dig, discover, and make some memories with u

05/09/2026

🚨⛏️ THE MINING SEASON BEGINS TODAY! ⛏️🚨

The wait is over… Northern Mining Company officially opens today during our FREE Play Sand Day in the Sault! 🌞🏴‍☠️💎

And this year? We’ve added EVEN MORE treasures for kids to discover.

Here’s how it works:
1️⃣ Come inside The Warehouse and choose your bag of mining rough
2️⃣ Head outside to the Mighty Sluice
3️⃣ Wash away the dirt and uncover hidden treasure like a real prospector!

Kids can choose bags containing:
💚 Emeralds
✨ Crystals
💎 Gemstones
🪨 Tumbled gemstones (including 1 natural pencil point polished stone!)
🦴 Fossils
🏹 Arrowheads

Want the BIG haul? Grab a 10lb Crystal Quest or Motherload bag loaded with an even larger mix of treasures and collections! 🌈⛏️

It’s hands-on, exciting, messy-in-the-best-way fun… and honestly? Watching kids discover their treasure never gets old. Every scoop feels like a tiny backyard expedition into a pirate cave mixed with a geology lab. 😄

📍 The Warehouse | Sault Ste. Marie

🕒 Northern Mining Company will be open during normal business hours:
Mon, Tues, Wed & Fri: 6am–6pm
Thursday: 6am–8pm
Saturday: 8am–3pm

🗓️ Opening Day: Saturday, May 9

Come dig, discover, explore, and make some memories with us!

Merry Christmas to all the little diggers and explorers out there!
12/25/2025

Merry Christmas to all the little diggers and explorers out there!

✨💎 “This is more fun than my birthday!” … “Best day of my life!” — Those were the shouts we overheard from a group of th...
09/13/2025

✨💎 “This is more fun than my birthday!” … “Best day of my life!” — Those were the shouts we overheard from a group of three girls who came out to earn their Junior Miner Certificates this week. While we know it probably wasn’t *the* best day ever (😉), it was clear they were having an absolute blast sifting and striking it rich with their treasures!
We love seeing kids light up when they discover something new, and we’re so glad these future rockhounds chose to spend their afternoon with us. 🪨🔍

👉 Find Northern Mining Company at Northern Sand & Gravel’s Warehouse
📍 1140 W. 3 Mile Rd., Sault Ste. Marie, MI.

Come on in and let your little miners make some memories of their own! 🏆👷‍♀️

🧠💎 Did you know? Gem mining isn’t just fun — it’s smart fun.Sluicing helps kids strengthen their focus, practice patienc...
08/02/2025

🧠💎 Did you know? Gem mining isn’t just fun — it’s smart fun.
Sluicing helps kids strengthen their focus, practice patience, improve fine motor skills, and spark curiosity about geology and science. It’s hands-on learning in the best way: messy, exciting, and filled with treasure!

💦 Bring your little miners to Northern Mining Company’s Mighty Sluice this Saturday from 8AM–3PM and let them dig into an unforgettable adventure.

They’ll sift, swirl, and discover hidden gems — and walk away with more than just rocks. They’ll gain confidence, curiosity, and maybe a new favorite hobby.

📍Located at Northern Sand & Gravel’s Warehouse in Sault Ste. Marie
📅 Open Saturdays | ⏰ 8AM–3PM
And Mondays - Fridays, 6am-6pm (open ‘til 8pm on Thursdays)

Get Your Hands Dirty (in the Best Way) with Gem Mining!Ready to dig into some real fun? The Mighty Sluice is where kids ...
07/26/2025

Get Your Hands Dirty (in the Best Way) with Gem Mining!

Ready to dig into some real fun? The Mighty Sluice is where kids (and adventurous grown-ups) uncover sparkling gems, cool fossils, and big smiles. It’s the ultimate weekend adventure—no screens, just treasure!

Once you’ve struck it rich, swing by The Pit Stop to refuel:
🥓 Breakfast favorites to kickstart your hunt
🥪 Lunch made for champions
🍦 Ice cream, Dole Whip, dirty sodas, and iced coffees for a sweet victory lap

Located at Northern Sand & Gravel’s Warehouse at 1140 W. 3 Mile Rd., Sault Ste Marie (in front of Meijer).

We’re open 8 AM – 3 PM on Saturdays—so grab your crew, roll up your sleeves, and let’s get sluicin’!

Who’s ready to find some treasure? Tag your adventure buddy below!

07/10/2025

Come see these legends in action tonight!

07/08/2025
06/07/2025

🤠 Well howdy, folks… we made it to Facebook!

If you like dirt, treasure, and a whole lotta fun — you’re in the right place.

We’re the crew behind The Mighty Sluice, where kids (and grown-ups too) can pan, dig, and discover all sorts of shiny surprises.

Stick around for updates, adventures, and tall tales from the dig site. It’s gonna be a rootin’ tootin’ good time.

Let’s get to diggin’! 💎⛏️
1140 W. 3 Mile Road , Sault Ste. Marie, MI

Address

1140 W. 3 Mile Road
Sault Ste. Marie, MI
49783

Opening Hours

Monday 6am - 6pm
Tuesday 6am - 6pm
Wednesday 6am - 6pm
Thursday 6am - 8pm
Friday 6am - 6pm
Saturday 8am - 3pm

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