United StatesCalifornia Diamond Mountain Road
Diamond Mountain Road Bike Climb - PJAMM Cycling

3.6
FIETS
3.3 mi
DISTANCE
1,452 ft
GAINED
8.3 %
AVG. GRADE
FULL CLIMB STATS
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INTRO

This is an exceptional, yet brief, climb in the northwest section of Napa Valley. This climb more than any other in Napa County offers a legitimate redwood forest-like experience. Although there are negligible vineyard views throughout the climb, we are treated to a near-private ride, completely shaded by a canopy of tree branches (redwoods for much of the climb), and one spectacular photo op of Mt. St. Helena eight miles north. We highly recommend this short up-and-back climb for those traveling through or near Calistoga - you will not be disappointed.
8.2% average grade (8.6% climb only) with 26% at 10-15%, 6% at 15-20%, and 1.6% ≥20%.  The steepest quarter-mile is 15.6%.

See more details and tools regarding this climb's grade via the “Profile Tool” button.
Roadway:  Narrow two lane rural roadway winding through the redwoods with no center line and in fair to poor condition.

Traffic:  Minimal.

Parking:  On the side of the road at the start of the climb - Map;  Street View. 
Provisions:  In Calistoga 1.5 miles northwest (Map) or St. Helena seven miles southeast (Map). 
Before heading out on any cycling adventure check out our Things to Bring on a Cycling Trip and use our interactive check list to ensure you don't forget anything.
If you have travelled to Napa County to cycle, you are welcome to contact me at john@pjammcycling.com if you have any questions about the area. I grew up and live in neighboring Sonoma County, but do have a good working knowledge of Napa. 

Use the “Routes in Area” button on the menu bar to see other bike climbs in this area. 

ROUTE MAP

MEMBER RATING

Difficulty: Strenuous
2
Road
5
Traffic
3
Scenery

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Sonoma County
United States (CA)
19 ROUTES
39 POIs
ROUTE STATS (TOTAL)
269.3
mi
DISTANCE
41,801
ft
ELEV. GAIN

NEARBY CLIMBS (0) RADIAL PROXIMITY

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Oct 3, 2021
difficulty: Strenuous
scenery: 3
traffic: 5
road: 2
Oct 3, 2021
scenery: 3
traffic: 5
road: 2
The recent fire has taken Away some of its beauty, and the road is more damaged with a few hairpins that are largely gravel
ROUTE MAP
PROFILE TOOL
Route Data
S.G. (%)
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Segment Data
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Climb Profile Not Found
CLIMB SUMMARY

Cycling Diamond Mountain Road, Calistoga, California.

Ride 3.3 miles gaining 1,438’ at 8.2% average grade.

A Bay Area Top 10 Most Scenic Bike Ride

This is an exceptional yet brief climb in the northwestern section of Napa Valley.  

We believe Diamond Mountain Road is the second most scenic climb in Napa County . . . after Mt. St. Helena.

   

As can be seen from our featured image and the collage below (top right), there are some nice views of the mighty Mt. St. Helena just across the Napa Valley from the Diamond Mountain climb.

DSC04000.JPG

This climb more than any other in Napa County offers a legitimate redwood forest experience.  Although there are negligible vineyard views throughout the climb, we are treated to a near-private ride, completely shaded by a canopy of tree branches, (redwoods for much of the climb) and one spectacular photo op of Mt. St. Helena eight miles north.  We highly recommend this short up-and-back climb for those travelling through or near Calistoga -- you will not be disappointed.  

   


Some of the beautiful scenes along this wonderful climb.

The best segment of redwoods in Napa County.

A beautiful finish.

Traffic and Roadway Surface Report:  This is a very narrow road (essentially one lane towards the top) with no center line, rough pavement, and a fair amount of loose gravel and debris (careful on the descent).  However, there is very little traffic along the climb and we rank this as a fairly safe ascent.

That’s a wrap!!