The 2019 Sierra Century Jersey is now available. For more information go to

About our event:

This year the Sierra Century invites you to choose an adventure between two routes (37 and 65 miles) through the beautiful rolling oak woodland and pine forests of Amador County, including the historic Gold Rush towns of Ione, Sutter Creek, Volcano, and Fiddletown.

We refer to these routes as adventures because this largely undeveloped country is highly scenic and uniquely historic, the roads are in fair condition with little and often no traffic, and the routes have a wide variety of terrain. Both routes have significant climbing as well as exhilarating descents.  If you are looking for routes that are flat or mostly flat, this event is not for you. There are no staged starts and no means are provided for timing individual riders.



 •The Half Metric Century, 37 miles with 1700 feet of climbing, follows the Metric Century route for 22.5 miles. Riders continue on Plymouth Highway 124 and then return to Plymouth via Willow Creek Road.. The route includes 1 rest stop.


The Metric Century, 65 miles with 5000 feet of climbing, follows rolling oak woodland to Ione, then continues on to Sutter Creek, Volcano, Ram’s Horn Grade, Daffodil Hill, then down to Fiddletown and back to the Fairgrounds. The route has the same mileage and about the same amount of climbing as the 100KM route of the Party Pardee Century (4150 ft.).  The route includes two rest stops and 2 water stops.


 All rides are fully supported by rest and water stops, SAG vehicles, bicycle mechanics, flaggers, law enforcement personnel, and a large corps of volunteers. For more details about the routes, including elevation changes, go to

 The ride will be held rain or shine. NO REFUNDS. However, you will be able to transfer your registration without charge.


Plenty of free parking at the Amador County Fairgrounds. Once at the Fairgrounds, follow the signs and volunteer flaggers.

 Continental breakfast:

 A continental breakfast will be available during morning registration.

 Post-Ride Meal:

 The post-ride meal will be served starting at 12 Noon and closing at 4:00 PM.  Event closes at 5:00 PM

 Options for overnight:

 (1)  There are a variety of hotels, BnBs, and cottages in the nearby area. For a complete listing of places to stay in the Amador County area, please go to The site includes places to stay, dining options, wineries, and a calendar of events and activities in the Amador area. The Amador Council of Tourism phone number is (209) 267-9249 or you can email them at

 (2)  Horizons 49er Village and RV Resort is next door to the Fairgrounds in Plymouth and is another option. To make your reservation, go to or call (209) 245-6981. 

 (3)  Tent Camping: The Amador County Fairgrounds provides plenty of space for tent camping. Tent camping is $25 per night (2-person max.). Reservations can be made with event registration.

(4)  RV Parking: The Amador County Fairgrounds has RV parking with water and electrical hookup available for $30 per night. Reservations can be made with event registration.

 There are a limited number of showers at various locations at the Fairgrounds (see Fairgrounds site map at


 Visit Our Home Page,, for more information, including Frequently Asked Questions, or contact the Sierra Century Director: Tom Adams at


This is sure to be a fun and challenging day. The metric route has long, sustained climbs with a few steeper climbs. Please train properly.