4.6
(6457)
17,885
runners
Fire Road SA31
00:58
5.71km
400m
Running
Fire Road SA31 offers a demanding uphill jogging experience through the forested Santa Cruz Mountains, rewarding your effort with truly expansive views. As you climb, you'll see Mount Umunhum and the Santa Clara Valley spread out below, with the Loma Prieta Way Overlook providing a prime spot to take it all in. This difficult 3.6-mile (5.7 km) route packs in 1320 feet (402 metres) of elevation gain, typically taking around 58 minutes to complete, making it a fantastic challenge for fit runners.
When planning your visit, you'll appreciate the convenient parking available right at the trailhead. This trail is best enjoyed when you're ready for a strenuous workout, so consider tackling it during cooler parts of the day or year. Always bring plenty of water, even for this relatively short but intense ascent.
This trail stands out for its direct and challenging ascent, providing a unique way to experience the natural beauty of the Santa Cruz Mountains. The panoramic vistas extend to both the Inner and Outer Coast Ranges, and on exceptionally clear days, you might even spot the Soquel Canyon State Marine Conservation Area. It's a serious physical test set against a backdrop of stunning natural scenery.
Last updated: June 9, 2026
Tips
Your route passes through a protected area
Please check local regulations for:
Waypoints
Start point
Parking
Get Directions
2.83 km
Loma Prieta Way Overlook
Highlight • Viewpoint
Tip by
5.71 km
End point
Parking
Way Types & Surfaces
Way Types
5.23 km
334 m
Surfaces
334 m
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Elevation
Highest point (900 m)
Lowest point (500 m)
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Weather
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Today
Sunday 5 July
23°C
12°C
0 %
Additional weather tips
Max wind speed: 11.0 km/h
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This route was planned by komoot.
Frequently Asked Questions
How challenging is this jogging route?
This route is considered difficult and requires a very good level of fitness. It features significant elevation gain over its 5.7 km distance, with persistently steep sections that make it a hard run. Be prepared for an uphill challenge.
Where can I park to access the trailhead?
The trailhead for this route is conveniently located next to a parking lot within the Sierra Azul Open Space Preserve. Look for designated parking areas near the start of Fire Road SA31.
Are dogs allowed on the trail?
Yes, dogs are generally allowed in the Sierra Azul Open Space Preserve, but they must be kept on a leash at all times. Please ensure you clean up after your pet to help maintain the preserve's natural beauty.
What is the best time of year to jog this route?
The Sierra Azul Open Space Preserve offers beautiful scenery year-round. However, for jogging, spring and fall often provide the most comfortable temperatures. Summers can be hot, and while winters are mild, trails can sometimes be muddy after rain. Check local weather conditions before you go.
Do I need a permit or is there an entrance fee for the Sierra Azul Open Space Preserve?
No, there are typically no entrance fees or permits required to access the trails within the Sierra Azul Open Space Preserve, including Fire Road SA31. It is open to the public for recreational use.
What kind of terrain should I expect?
The route is primarily characterized by mostly paved surfaces, though some sections may transition to dirt fire road. Expect a consistent uphill challenge due to the significant elevation changes.
What scenic views or landmarks can I see along the way?
This route offers panoramic vistas of Mount Umunhum, the Santa Clara Valley, and the Inner and Outer Coast Ranges. A notable feature is the Loma Prieta Way Overlook, which on clear days may provide views of the Soquel Canyon State Marine Conservation Area.
How long does it typically take to complete this jogging route?
On average, it takes about 58 minutes to jog this 5.7 km route. However, due to its difficult grading and significant elevation gain, your actual time may vary depending on your fitness level and pace.
Does this route connect with other trails?
Yes, while the route primarily follows Fire Road SA31 for about 96% of its length, it also intersects with sections of Hihn's, Hihn's Mill Road, and Hihns Sulphur Spring Road within the Sierra Azul Open Space Preserve.
Is this route suitable for beginners?
Given its 'difficult' grading and significant elevation gain, this route is generally not recommended for beginners. It requires a very good level of fitness and experience with challenging uphill runs.
What wildlife might I encounter?
The Sierra Azul Open Space Preserve is home to diverse habitats and abundant wildlife. While jogging, you might spot various bird species, deer, and other small mammals. Always maintain a respectful distance and do not disturb the animals.
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