| year of publication | ISBN | author(s) | title |
|---|---|---|---|
| 1973 | 978-0-9701178-4-7 | Claude Anthony Look · Alexander Lowry | Castle Rock: West of Skyline |
| 1999 | 978-0-9701178-5-4 | Castle Rock, Big Basin Redwoods and Portola Redwoods State Parks, Skyline-To-The-Sea Trail: Trail Map of the Santa Cruz Mountains | |
| '' | 978-0-9701178-6-1 | Trail Map of the Santa Cruz Mountains: #2 | |