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Mount Umunhum – Mount Umunhum loop from Almaden Reservoir

Mount Umunhum – Mount Umunhum loop from Almaden Reservoir

Hard

4.6

(5594)

5,792

riders

Mount Umunhum – Mount Umunhum loop from Almaden Reservoir

01:49

23.3km

920m

Road cycling

Hard road ride. Very good fitness required. Some segments of this route may be unpaved and difficult to ride.

Last updated: May 29, 2026

Tips

The surface for a segment of your route may not be suitable

Some segments of your route comprise a surface that may not be suitable for your chosen sport.

After 11.5 km for 282 m

Waypoints

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2.72 km

Mount Umunhum Road

Highlight • Trail

Hiker/biker trailhead parking at the bottom of the well-paved road reopened in September 2017, climbing sometimes steeply in switchbacks into the Sierra Azul preserve from Hicks Road to the former radar tower on the summit of Mt Umunhum

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2.79 km

Mount Umunhum Road (climb)

Highlight (Segment) • Climb

Well paved road reopened in 2017, climbing sometimes steeply in switchbacks into the Sierra Azul preserve from Hicks Road to the former radar tower on the summit of Mt Umunhum. …

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11.4 km

Mount Umunhum

Highlight • Summit

Opened in 2018, on the top of Sierra Azul Open Space preserve the Vista points and the former radar tower on the summit of Mt Umunhum provide stunning 360° views

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11.4 km

Mount Umunhum Summit

Highlight • Summit

Long closed as a military radar station, the peak has now become one of the most popular biking destinations thanks to the excellent, albeit steep, paved road to the top. …

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11.6 km

Mount Umunhum

Highlight • Summit

At 3,486 feet, this peak stands as one of the highest in the region. It features a distinctive block-shaped radar tower that played a crucial role in the military's missile …

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12.1 km

Mount Umunhum Trailhead

Highlight • Trail

Top of the trail off the paved road with spectacular views; it's all the way downhill from here ;-)

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17.8 km

Sierra Azul OSP - Bald Mountain Trailhead

Highlight • Parking

Great views just off the Trailhead parking area, with restrooms and access to the trails: to Bald Mountain to the east, and Mt Umunhum Trail to the west.

Tip by

17.8 km

Lower Mount Umunhum Road

Highlight (Segment) • Climb

If you prefer loops, you can use the paved road for a quick efficient climb up to Mt Umunhum summit and use the excellent packed dirt and gravel mountain bike trail to come back down.

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23.3 km

End point

Way Types & Surfaces

Way Types

22.9 km

422 m

Surfaces

17.6 km

5.47 km

277 m

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Today

Monday 1 June

31°C

11°C

0 %

Additional weather tips

Max wind speed: 6.0 km/h

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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Mount Umunhum – Mount Umunhum loop from Almaden Reservoir

Mount Umunhum Road

Mount Umunhum Road (climb)

Mount Umunhum

Mount Umunhum Summit

Mount Umunhum

Mount Umunhum Trailhead

Sierra Azul OSP - Bald Mountain Trailhead

Lower Mount Umunhum Road

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