| title | ISBN-13 (ISBN-10) | year of publica- tion |
|---|---|---|
| Portland City Walks: Twenty Explorations In and Around Town | 978-0-88192-885-3 (0-88192-885-2) | 2008 |
| Portland Hill Walks: Twenty Explorations in Parks and Neighborhoods | 978-0-88192-692-7 (0-88192-692-2) | 2005 |