Northeast Treasure Hunter's Gem & Mineral Guide (5th Edition): Where and How to Dig, Pan and Mine Your Own Gems and MineralsKathy J. Rygle
Stephen F. Pedersen
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- Northwest Treasure Hunter's Gem and Mineral Guide (5th Edition): Where and How to Dig, Pan and Mine Your Own Gems and MineralsKathy J. Rygle
- Northwest Treasure Hunter's Gem and Mineral Guide (6th Edition): Where and How to Dig, Pan and Mine Your Own Gems and MineralsKathy J. Rygle
- Southwest Treasure Hunter's Gem and Mineral Guide (6th Edition): Where and How to Dig, Pan and Mine Your Own Gems and MineralsKathy J. Rygle
- Northeast Treasure Hunter's Gem and Mineral Guide (6th Edition): Where and How to Dig, Pan and Mine Your Own Gems and MineralsKathy J. Rygle
