Is this a physical book or a digital download?
Digital only — one PDF, 320 pages, delivered to your email immediately after checkout. That single file contains the full 13-chapter, 96-entry book, the twelve-worksheet workbook Your County, Not Mine with its own cover, the printable Tailgate Checklist, three appendices and a real index. Three named pieces, one file in your inbox — we'd rather say that plainly here than have you count attachments and wonder. If you add The Field Card Deck at checkout, it arrives as a second file in the same email: twelve cards, nineteen pages. Yours for life, on any device.
I've been rockhounding for twenty years. Will I learn anything new?
If every trip already comes home full, probably not — pass your copy to the person whose bucket doesn't. But most twenty-year rockhounds have twenty years of habit, not twenty years of method. Three things you can check before you decide: what a river actually does to agate, as opposed to what density-sorting logic borrowed from another hobby says it does; where the twenty-five-pounds-a-day figure is really codified, and why that matters; and why the penny test stopped working in 1982, which you can settle on a kitchen scale. If all three are already familiar, ask for the refund and keep the file.
What's in the workbook and the checklist?
The workbook is twelve worksheets over thirty-seven pages — naming the target before you open anything, what's already reported in your county, which rock unit it came from, your lithology sheet, everywhere else that unit outcrops, who manages the surface, your pin converted to Meridian, Township, Range and Section, the free claim check, access and water, the scripted phone call, the ranking, and the next four counties. Every sheet is tied to a numbered entry in the book. The Checklist is the pre-drive and pre-dig sequence, formatted to print black-ink and fold into the glovebox, ending in a go / no-go line with the notices on the reverse.
Does it work for agate, thundereggs and crystal pockets?
Yes, and that's the design. The book is built on rock types rather than on places, so the same procedure runs whatever you're after: Chapter 3 is the lava-flow top where agate sits, Chapter 4 separates geodes from thundereggs because the test everybody knows only works on one of them, Chapter 5 follows schorl uphill to a pegmatite pocket, and Chapter 6 gives you the three minerals that tell you what rock you're standing on. Identification in the field runs through Chapters 9 and 10 regardless of the target.
What about the sites everybody has already dug out?
Chapter 11 is built for exactly that — five kinds of ground the crowd never touches, one rule about which side of a nodule you strike, one season worth planning around, and an honest test for ground that really is finished so you stop working it. See pain #01 above: a site is famous because you can park at it, which is why everybody works the same twenty yards of it.
What states and regions does this cover?
The geology chapters are built on rock units, not on places, so they work wherever those rocks are — which is everywhere. The legal chapter covers the federal agencies in full and then works Utah, Arizona, Texas and Oregon as examples of how incompatible four state regimes can be: one sells a permit with poundage limits, its neighbour offers no collecting permit at all, and you can cross between them on a county road without seeing a sign. And Chapter 2 plus the workbook show you how to pull your own state's free geologic mapping and claim records from your kitchen table.
I already watch rockhounding videos every week. Why buy this?
Keep watching — that's where you see the thing, and seeing it is the part a page can't do for you. What a video can't do is stand at your tailgate, in your county, on a Tuesday night, while you work out whether that outcrop is worth a tank of fuel and whether you're allowed to pick anything up when you get there. That's a procedure you run, not a thing you watch. The thing this replaces isn't your feed — it's the site guide on the shelf that sends two hundred people a year to the same pull-out, sometimes onto private ground, and has no way to tell you when it's wrong. Chapter 1 gives you six named tests for judging any source in this hobby, and runs this book through all six, so you can grade us with the same tool.
What if I don't like it?
The Own Ground Guarantee: read the book, run the workbook on your own county. If you can't stand at your tailgate and say why this ground and not that ground — and whether you're allowed to pick anything up — email us within 60 days at the address on your receipt and we'll refund every cent. No questions, no forms, no hard feelings. And you keep the PDF.
The Own Ground Guarantee
Read the book. Run the workbook on your own county. If you can't stand at your tailgate and say why this ground and not that ground — and whether you're allowed to pick anything up — email us within 60 days at the address on your receipt and we'll refund every cent. No forms, no questions, no hard feelings. You keep the PDF.
At $24 this costs less than the laminated card set on the same shelf, and less than one year of the public-land mapping subscription you were about to buy — which is $34.99 a year, every year (onX Backcountry Premium, price checked August 2026).
