Bay Area Trail Map:
Big Basin and Castle Rock
Third edition, 2015
Waterproof printed version
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Please allow 3–5 business days for delivery
- Scale 1:25,000
- 26 x 39" unfolded, 9 x 4.3" folded
- Printed on waterproof plastic, full color on both sides
Downloadable version for mobile devices
Select one of the icons below to install the free Avenza Maps app:
...then get the following map bundle:
Big Basin and Castle Rock · $6.99
- Note that phone and tablet GPSs may not work under the biggest redwoods or in steep canyons.
This map covers the Santa Cruz Mountains from the outskirts of Saratoga and Los Gatos to the Pacific coastline around Point Ano Nuevo. Castle Rock, Big Basin, Portola, Butano, and Ano Nuevo State Parks are fully covered, as are many regional parks of the South Skyline Boulevard area, such as Fremont Older Open Space Preserve, Upper Stevens Creek County Park, Sanborn County Park, and El Sereno Open Space Preserve. The map includes the entire Skyline-to-the-Sea Trail.
All official hiking trails were drawn from GPS data with a resolution of about 100 feet. Trail mileages are marked and most streets are labeled. To help you keep track of your location, the map shows the locations of memorial grove markers, footbridges, panoramic viewpoints, and stairs.
Unofficial trails and dirt roads are shown and are greyed out to distinguish them from official hiking trails. We don't recommend that you use these trails, but if you accidentally wander onto one, having it on the map will help you get back on track.
Areas of old-growth redwoods are shaded in dark green, wooded areas in light green, and developed areas in grey. A UTM grid is provided to help with GPS navigation.
For the 3rd edition, the map has been printed on waterproof plastic for the first time. In addition, the trails were updated with new, more accurate GPS data and the new John Nicholas Trail in Sanborn County Park has been added. Wooded and developed areas have been redrawn at a higher resolution and the hillshade has been re-rendered to give a better impression of the area's large-scale topography.
Rectangles indicate map coverage
The front of the map shows Castle Rock and Portola Redwoods State Parks (click to enlarge)
The back of the map shows Big Basin Redwoods and Butano State Parks (click to enlarge)
Part of the map (actual printed size of this area is 5 x 5")