Crowley Flint Quarry (State Historic Site)
Approximate — check official site before visiting
Crowley Flint Quarry State Historic Site near Golden Valley, North Dakota. For 11,000 years American Indians dug into gravel deposits seeking Knife River flint, a coffee-colored translucent stone. Gem-quality flint can be collected here. Part of the same ancient quarry complex as the Lynch Quarries.
🪨 What You Can Find Here
Gem Quality Flint
Also found at:
- No other locations listed yet
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⛏️ Recommended Gear
Make the most of your visit to Crowley Flint Quarry (State Historic Site) with the right equipment.
Rock Hammer
The most essential rockhounding tool. Choose a hammer with both a flat striking face and a pointed pick end.
Typical: $25-45
Safety Glasses
Mandatory protective gear. Rock chips fly unpredictably when hammering.
Typical: $10-20
Chisel Set
Cold chisels in 3-4 sizes for precise extraction from matrix rock.
Typical: $15-30
Geologist's Pick
A heavier crack hammer for splitting hard rock. Essential for hard rock mining areas.
Typical: $35-60
Sifting Screen
Stackable mesh screens for sifting gravel and dirt. Essential for gem and fossil hunting.
Typical: $20-40
UV Flashlight
Long-wave UV light for finding fluorescent minerals and Yooperlites.
Typical: $15-35