Northeast Treasure Hunter's Gem & 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 (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
Southwest Treasure Hunter's Gem and Mineral Guide (5th ed.): Where and How to Dig, Pan and Mine Your Own Gems and MineralsKathy J. Rygle