Yarnell South Bike Climb - PJAMM Cycling

Yarnell South


All the cycling data and info you'll need to climb Yarnell South

Page Contributor(s): Bruce Hamilton, La Quinta, CA, USA; Sam Lyons, Tempe, AZ, USA

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Climb Summary

Cycling Yarnell South, Yavapai County, Arizona

Ridge 7.3 miles gaining 1,817’ at 4.7% average grade.

Climb summary by PJAMM’s Bruce Hamilton.

This ride starts just outside the town of Congress, AZ (pop. 4,821 in 2010) about 80 miles northwest of Phoenix.

Ghost town of Congress

Photo:  Congress Facebook page

The climb is a pretty consistent five percent grade over about eight miles.


Consistent 5% grade 🚴😊

The road has a wide shoulder and uphill and downhill traffic are separated. This road goes to the town of Yarnell where in 2013 there was a deadly wildfire where many firefighters were suddenly trapped by flames. Halfway up the climb is a state park created to commemorate the firefighters.  We strongly recommend taking the Granite Mountain Hotshots Memorial Trail hike of 6 miles round trip if you are in the area.  We did the climb and the hike on the same visit – both are recommended.

This is the memorial site where 19 Prescott Granite Mountain

 Hotshots died fighting the Yarnell Hill Fire fire on June 30, 2013.

This climb is not difficult by PJAMM standards but is a typical southwest desert ride and worth riding if you’re in the area. The descent is fun as the uphill traffic is on a separate road and the shoulder is wide.

Climb begins in Congress, one of the areas ghost towns.

Congress area early circa 1914

Photo:  Wikipedia 

Climb ends in Yarnell (pop. 649 in 2010)

Photo:  Wikipedia

Thank you Bruce!!

Further input from PJAMM’s Sam Lyons:

  • The best place to park is Granite Mountain Hotshots Memorial State Park, a small pull off parking lot with one trailhead that leads up into the mountains. Since the road is separated, right at mile 6 there’s a left turn onto a short road that connects to the other side of the highway. Unfortunately this means that you’ll have to do most of the descent first, then climb back up to Yarnell, then descend back 1.5 miles to your car after you finish.

  • If doing this climb in the late afternoon the descent will point you directly into the sun the entire time

  • A few quaint diners, antique shops and general stores in the town of Yarnell. A nice place to ride around for a bit after doing the climb