43rd SIERRA CENTURY - April 21, 2018

 The event is over for this year. Next year it will be on April 20, 2019
Pictures are now available at   www.captivatingsportsphotos.net

About the 43rd Sierra Century

This year the Sierra Century invites you to choose an adventure from among four different routes (41/65/102/122 miles) through the beautiful rolling oak woodland and pine forests of Amador and El Dorado Counties, including the wine country of Fair Play and the Shenandoah Valley and the historic Gold Rush towns of Ione, Sutter Creek, Volcano, Fiddletown, Mt. Aukum and Slug Gulch.

We refer to these routes as adventures because this largely undeveloped country is highly scenic and uniquely historic, the roads are in good condition with little and often no traffic, and the available routes have a wide variety of terrain. All of the 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.


Amador County Fairgrounds
8621 Sherwood St
Plymouth, CA 95669


Registration is now open both online at BikeReg.com and by mail.  To register by mail, print the registration form available through the appropriate link on the Registration Page, complete the form and mail it to the address indicated.  For more registration details, go to the Registration Page. 

You can pick up your registration packet at the Fairgrounds, Pokerville Hall, either on Friday, April 20, 2018 from 4:00 PM-7:30 PM or on Saturday, the day of the ride, from 6:00 AM-9:00 AM. 


As part of your registration fee, a continental breakfast of coffee, fruit, and bagels will be available beginning at 6:00 AM in Pokerville Hall.

Lunch on Course

Lunch will be available at the Lyons Park Rest Stop (primarily for Metric Century riders) and the Fiddletown Rest Stop (primarily for Classic Century and Double Metric Century riders).

Post-Ride Meal

A post-ride meal will be served from 12:00 Noon to 6:00 PM in the building next to Pokerville Hall, which is where breakfast and registration are held. Riders can select their entrée of choice from a delicious menu again prepared by Beth Sogaard Catering. Please indicate if you prefer a vegetarian option during your registration process. Non-rider meals can be purchased for $12 during the registration process or on the day of the ride at Polkerville Hall.  

A beer concession stand operated by the Amador County Fairgrounds Foundation will be open Saturday in front of the hall.


Post Ride Photos. Riders along the course will be photographed by Captivating Sports Photos.  Look for the bright green signs with the clocks along the course.  Photos can be searched by Time and Location, so note your time as you pass the green signs with the clocks.

Photos will be available within 48 hours for viewing and purchase at:


Massage services also will be available behind Pokerville Hall after your ride.

All routes are fully supported by rest and water stops, SAG vehicles with HAM radio communication, bicycle mechanics, flaggers, law enforcement personnel and a large corps of volunteers.

Overnight Options  For the full range of options for places to stay overnight in the Plymouth area, visit the website of the Amador Council of Tourism at www.touramador.com  Tent camping and RV camping are also available on the fairgrounds for both Friday and Saturday nights at $25 and $30, respectively, per night.  Camping registration at the fairgrounds may be made at the same time as online or mail-in registration, ride check-in, or day of event registration if still available.

Map of Fairgrounds

Where do I go once I arrive?  Follow the arrows and signs from the parking lots to Pokerville Hall for registration, breakfast, etc.  Map includes locations of bathrooms, showers, etc.

Map Amador Fairgrounds.pdf


There is plenty of free parking at the Amador County Fairgrounds. Once at the Fairgrounds, enter at either Locust or Empire Streets. Follow the signs and/or our volunteer flaggers.

Start Times 

The routes open at 6:30 AM, except for the 41er Tour which opens at 8 AM. If you start earlier, we cannot guarantee the routes will be completely marked and the rest stops ready. All riders should be on the course no later than 9:30 AM.

Double Metric Century and Classic Century riders need to be on the course by 7:00 AM.  Metric Century riders should be on the course by 8:00 AM.  

Double Metric Century riders must leave the Slug Gulch/Indian Diggings School Rest Stop, at the top of Slug Gulch, by 2:00 PM.  All riders reaching the base of Slug Gulch Road after 2 PM will be redirected to a bypass route.  See the FAQ Page.

Late Double Metric Century riders will be redirected to the Classic Century course.

Rest Stops and Water Stops

First Stop - For Metric Century, Classic Century, and Double Metric Century riders, the first stop in Ione at Mile 20.3 is a full rest stop. For 41er Tour riders, the first stop at Pioneer Park at Mile 22  is a full rest stop.  Both of these rest stops will have bag drops for returning rider gear to the fairground start.

Second Stop - The second stop for the Metric Century, Classic Century, and Double Metric Century routes is at Lyons Park which is located at Mile 35 on Sutter Creek Road.  Lyons Park is also a full rest stop and will have a bag drop.

Just follow your route sheets and route arrows as well as any signage along the course to stay on track.

There are a total of five rest stops and two water stops available throughout the course.  Please refer to your route sheet for locations.

Cell Phone Service

Cell phone service is very limited and, in some areas, nonexistent. HAM radio operators will be at Home Base and each Rest Stop to facilitate communications. SAG drivers will also have radios.

Event Closes

The Sierra Century event ends at 6:00 PM.

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