| title | ISBN-13 | year of publica-
tion | other author(s) |
|---|
| Northeast Treasure Hunter's Gem & Mineral Guide: Where & How to Dig, Pan and Mine Your Own Gems & Minerals | 978-0-943763-57-6 | 2008 | Kathy J. Rygle |
| Northeast Treasure Hunter's Gem & Mineral Guide: Where & How to Dig, Pan and Mine Your Own Gems & Minerals | 978-0-943763-39-2 | 2003 | " |
| Northwest Treasure Hunter's Gem & Mineral Guide | 978-0-943763-24-8 | 2003 | Kathy J. Rygle · Rygle |
| Northwest Treasure Hunter's Gem & Mineral Guide: Where & How to Dig, Pan and Mine Your Own Gems & Minerals | 978-0-943763-74-3 | 2011 | Kathy J. Rygle |
| Northwest Treasure Hunter's Gem & Mineral Guide: Where & How to Dig, Pan and Mine Your Own Gems & Minerals | 978-0-943763-55-2 | 2008 | " |
| Northwest Treasure Hunter's Gem & Mineral Guide: Where & How to Dig, Pan and Mine Your Own Gems & Minerals | 978-0-943763-48-4 | 2006 | " |
| Southeast States: Where & How to Dig, Pan and Mine Your Own Gems and Minerals | 978-0-943763-58-3 | 2008 | " |
| Southeast Treasure Hunter's Gem & Mineral Guide to the U.s.a.: Where and How to Dig, Pan and Mine Your Own Gems and Minerals | 978-0-943763-77-4 | 2011 | " |
| Southwest States: Where & How to Dig, Pan and Mine Your Own Gems and Minerals | 978-0-943763-56-9 | 2008 | " |
| Southwest Treasure Hunter's Gem & Mineral Guide to the U.S.A.: Where and How to Dig, Pan and Mine Your Own Gems and Minerals | 978-0-943763-75-0 | 2011 | " |
| The Treasure Hunter's Gem & Mineral Guides to the U.S.A.: Southwest States: Where & How to Dig, Pan, and Mine Your Own Gems & Minerals | 978-0-943763-38-5 | 2003 | " |
| The Treasure Hunter's Gem & Mineral Guides To The U.S.A.: Where & How to Dig, Pan And Mine Your Own Gems & Minerals: Northeast States | 978-0-943763-49-1 | 2006 | " |
| The Treasure Hunter's Gem & Mineral Guides to the U.S.A.: Where & How to Dig, Pan, and Mine Your Own Gems & Minerals: Northeast States | 978-0-943763-27-9 | 1999 | " |
| The Treasure Hunter's Gem & Mineral Guide: Where & How to Dig, Pan And Mine Your Own Gems & Minerals: Southeast States | 978-0-943763-51-4 | 2006 | " |
| The Treasure Hunter's Gem & Mineral Guide: Where & How to Dig, Pan And Mine Your Own Gems & Minerals: Southwest States | 978-0-943763-50-7 | 2006 | " |