Old Cazadero Road (Old Caz) Bike Climb - PJAMM Cycling

1.4
FIETS
3.3 mi
DISTANCE
984 ft
GAINED
5.2 %
AVG. GRADE

FULL CLIMB STATS

INTRO

Old Caz is a rural West Sonoma County Road that is paved coming from Guerneville, but dirt, gravel and pine needles on its back side. This is a very peaceful and fun bike ride and can be done on a road bike.  
The average grade of 5.2% spikes to 7.8% when descent is eliminated from the gradient formula.  The grades on this climb are all over the board - 26% (0.9 mile) is descent, 22% (0.7 mile) is at 0-5%, 28% (0.9 mile) is at 5-10%, and 24% (0.8 mile) is at 10-15%.  The steepest quarter-mile is 12.4% and steepest half-mile 11.4%. 

See more details and tools regarding this climb's grade via the “Profile Tool” button.

Roadway:  Narrow single lane road in decent shape but rough and with debris in others - as of 2019, the last few hundred yards were closed to motor vehicles. 

Traffic:  Minimal to none. 
If you are heading down the backside to Cazadero, you will need to forge a creek on the way - unless there have been recent storms, this is manageable, but just a heads up. 
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.
There are a few options to stay near Guerneville.  If you are cycling in Sonoma County another option is to rent a house or cabin in the area. 

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CLIMB SUMMARY

Cycling Old Cazadero Road - cyclist riding past road sign

Cycling Old Cazadero Road, Guerneville, Sonoma County, CA

Ride 3.3 miles gaining 984’ at 5.2% average grade.

Old Caz is a rural West Sonoma County Road that is paved coming from Guerneville, but dirt, gravel and pine needles on its back side.  A nice loop (cross bike recommended) is to begin in Duncan Mills and ride 23.8 miles (2,476’) from Duncan Mills to Monte Rio onto Old Caz Road (gravel much of the way and cross East Austin Creek at mile 14) to Cazadero then back to Duncan Mills (Map). It is recommended this ride be done during the summar as it is much easier to cross Austin Creek when the water flow is much lower.

     Bike climb Old Cazadero Road  - bike leaning against road sign

Access the climb on Old Cazadero Road off Hwy 116, Guerneville

Bike climb Old Cazadero Road  - road and signs

Clmbing Old Cazadero Road  by bike - start of climb - road sign, roadway, redwood trees

Start

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The road is very narrow and a bit rough - descent is tough, ascent fine.

Cycling Old Cazadero Road  - bike leaning against barriers near the end

.2 miles from the finish

Climbing Old Cazadero Road  by bike - PJAMM Cycling John Johnson with bike at finish

Finish

Bike race Old Cazadero Road  - cyclist climbing steep portion of road.

Grasshopper race

Grasshopper Adventure Series

This is a short but rugged climb at 9.9% average grade.  The roadway is very narrow, but traffic is scarce.  Kings Ridge can also be included in this loop if one is up for a more stout climbing day.