Gem Guides Book Company (1 to 4 of 4)
This useful reference includes individual photos printed for each variety within a specific species. Includes a separate section of color photos.
This useful reference includes information about roads and routes, peaks and ranges, natural and human history, and internet resources.
The updated edition with more on modern electronic prospecting and current equipment. Discover the practice of dry washing, which is a profitable means of extracting gold in regions where water sources are not available. This book will teach you how to...
This richly illustrated book will guide you to 28 outstanding rock-art sites in seven states, and teach you about art styles and the cultural groups that created them. Includes a resource guide to continue your exploration.