HarperCollins · Oxford University Press
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Grand Teton: Citadels of Stones | 978-0-06-258562-2 (0-06-258562-2) | 1996 | Jeremy Schmidt · Thomas Schmidt · Kathy Clay |
| Northern California | 978-0-19-540635-1 (0-19-540635-4) | 1986 | Larry Ulrich |
| Yellowstone: Land of Fire and Ice | 978-0-06-258559-2 (0-06-258559-2) | 1996 | Gretel Ehrlich · Kathy Clay |