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ROUTE DESCRIPTIONS



50 KM HALF METRIC

Cyclists should be experienced and reasonably fit to attempt this ride.  Although not as long or difficult as the other courses, the 50K does have ONE SIGNIFICANT CLIMB ON LUCAS VALLEY ROAD, a climb made challenging by its narrow shoulder and steep grade. 

It begins on flat-to-rolling terrain before a 1.5-mile, 430-foot climb to the Big Rock summit of Lucas Valley and a thrilling descent through the redwoods into the ranches and grasslands of West Marin. The route then winds north through relatively flat terrain past the small town of Nicasio. The rest stop is located at the Nicasio School (opposite side of the road). 

The route continues alongside Nicasio Reservoir to the turnaround point at the junction of the Pt. Reyes–Petaluma Road at mile 16. Riders are welcome to stop again at the Nicasio School Rest Stop before beginning the climb back up Lucas Valley Road to Big Rock. 

Riders should exercise caution on the DEMANDING DESCENT FROM BIG ROCK AT LUCAS VALLEY ROAD. This descent has several sharp left-hand turns with a decreasing radius. The remainder of the route is almost all downhill to the finish. 


100 KM HALF CENTURY

THIS COURSE INCLUDES STEEP CLIMBS AND TECHNICAL DESCENTS. 

It begins on flat-to-rolling terrain before a 1.5 mile, 430-foot climb to the Big Rock summit of Lucas Valley and a thrilling descent through the redwoods into the ranches and grasslands of West Marin. The route then winds north through relatively flat terrain past the small town of Nicasio--site of the first rest stop--and alongside Nicasio Reservoir. 

A 1.4-mile, 380-foot climb up the Pt. Reyes-Petaluma Road and a gentle descent leads riders past the famous Cheese Factory to a left turn on Hicks Valley Rd.  as we head to where the course diverges from all other routes for the the climb up Wilson Hill Rd., followed by a quick descent  into the Chileno Valley. Turn left on Chileno Valley Rd to reach the Laguna Rest Stop then head back down to the corner for a left turn to take into the outskirts of Petaluma where you turn right on Windsor Rd. to take you to D. street and head west on the Pt. Reyes-Petaluma Road, passing the Cheese Factory a second time. A slight climb and then a very fast descent to Nicasio Reservoir and Nicasio Valley Road ends in a relatively flat stretch to the third and final rest stop in the town of Nicasio. 

A few miles later, riders  begin the climb back up Lucas Valley Road to Big Rock. Riders should exercise caution on the DEMANDING DESCENT FROM BIG ROCK AT LUCAS VALLEY ROAD. This descent has several sharp left-hand turns with a decreasing radius. The remainder of the route is almost all downhill to the finish. 


100 MI MARIN CENTURY CLASSIC


THIS COURSE INCLUDES STEEP CLIMBS AND TECHNICAL DESCENTS.

It begins on flat-to-rolling terrain before a 1.5 mile, 430-foot climb to the Big Rock summit of Lucas Valley and a thrilling descent through the redwoods into the ranches and grasslands of West Marin. The route then winds north through relatively flat terrain past the small town of Nicasio--site of the first rest stop--and alongside Nicasio Reservoir. 

A 1.4-mile, 380-foot climb up the Pt. Reyes-Petaluma Road and a gentle descent leads riders past the famous Cheese Factory Cheese Factory to a left turn on Hicks Valley Rd. Fuel up at the Lincoln School Rest Stop before  heading north to Marshal Petaluma Rd/Wilson Hill junction.  A left turn here takes you through bucolic farm lands to Highway 1 where you head North to Tomales. A left turn onto Dillon Beach Road leads to a moderate climb along Whitaker Bluff and remote Franklin School-Valley Ford Road, up and over one last ridge north, past the halfway point to the third rest stop at Valley Ford .

The ride continues over scenic and sparsly travelled roads to the short but steep Middle Road climb with another thrilling descent to the s curve at Whittaker Bluff.  It then crosses over Highway 1 to become Fallon Two Rock Road which we follow to a right turn at Alexander Road and then a left onto Tomales Petaluma Road and back to Chileno Valley Rd for the return.   A rest stop awaits at the historic Laguna School before you continue to the outskirts of Petaluma and the left turn on Windsor Rd through the roundabout to D Street. Head 
west on Pt. Reyes-Petaluma Road, taking riders past the Cheese Factory to a slight climb and a very fast descent to Nicasio Reservoir and Nicasio Valley Road. A relatively flat stretch lead to the fifth and final rest stop in the town of Nicasio. 


A few miles later, riders  begin the climb back up Lucas Valley Road to Big Rock. Riders should exercise caution on the DEMANDING DESCENT FROM BIG ROCK AT LUCAS VALLEY ROAD. This descent has several sharp left-hand turns with a decreasing radius. The remainder of the route is almost all downhill to the finish. 

MT TAM CENTURY


THIS COURSE INCLUDES STEEP CLIMBS AND TECHNICAL DESCENTS.

The Mt Tam Century  begins on flat-to-rolling terrain before a 1.4 mile, 430-foot climb to the Big Rock summit of Lucas Valley and a thrilling descent through the redwoods into the ranches and grasslands of West Marin. Here the route parts ways with the other courses, wending its south and east to the town of Fairfax and the ascent to the top of Mount Tamalpais (Tam), which begins on Bolinas-Fairfax Road. The narrow and twisting road levels out as it approaches a golf course and begins to climb again to the top of Pine Mountain, site of the first rest stop.

From the here the road descends in a series of tight left turns with a decreasing radius to four miles of rolleurs ending at a dam at Alpine Lake. A two-mile ascent takes riders to a left-hand turn onto Ridgecrest Road, which offers sweeping views of the Pacific Ocean and golden grass hillsides for the six miles of rolleurs, some with challenging grades, up to the top of Tam. At the very top is a checkpoint and the turnaround.

Riders now descend three miles that they just ascended and must take care to avoid riders finishing their climb to the top of Tam. They continue descending south to Pantoll .  Continue the route by keeping left onto Panormic Highway past the Mountain Home Inn the the Junction at Four Corners and a sharp left turn onto Muir Woods Rd.  These roads have sharp technical turns that require extreme caution.
A few miles past the Muir Woods gate we encounter the Santos Meadow Rest Stop.  Fuel up for the stunning views ahead as 
we turn north on Highway 1 as it passes the Bolinas Lagoon toward Olema and into   Pt. Reyes Station, where riders find their third rest stop.  The course continues north on Highway 1 to a right on Point Reyes-Petaluma Road, following the flat creek bed inland to Platform Bridge Rd where we make left on Petaluma Pt. Reyes Rd.  up  to the Nicasio Reservoir and right turn on Nicasio Valley Rd. A relatively flat stretch leads to the fifth and final rest stop at the Nicasio Schoolhouse.

A few miles later, riders  begin the climb back up Lucas Valley Road to Big Rock. Riders should exercise caution on the DEMANDING DESCENT FROM BIG ROCK AT LUCAS VALLEY ROAD. This descent has several sharp left-hand turns with a decreasing radius. The remainder of the route is almost all downhill to the finish.



200 KM DOUBLE METRIC


THIS COURSE INCLUDES STEEP CLIMBS AND TECHNICAL DESCENTS.

The Marin Double Metric Century route joins the Marin Century route for the first 50 miles. It begins on flat-to-rolling terrain before a 1.5 mile, 430-foot climb to the Big Rock summit of Lucas Valley and a thrilling descent through the redwoods into the ranches and grasslands of West Marin. The route then winds north through relatively flat terrain past the small town of Nicasio--site of the first rest stop--and alongside Nicasio Reservoir. 

A 1.4-mile, 380-foot climb up the Pt. Reyes-Petaluma Road and a gentle descent leads riders past the famous Cheese Factory Cheese Factory to a left turn on Hicks Valley Rd. Fuel up at the Lincoln School Rest Stop before  heading north to Marshal Petaluma Rd/Wilson Hill junction.  A left turn here takes you through bucolic farm lands to Highway 1 where you head North to Tomales. A left turn onto Dillon Beach Road leads to a moderate climb along Whitaker Bluff and remote Franklin School-Valley Ford Road, up and over one last ridge north, past the halfway point to the third rest stop at Valley Ford .  

The Valley Ford Rest Stop is well stocked to sate your hunger and quench your thirst. ALL DOUBLE METRIC RIDERS NEED TO SIGN IN AT THE BAY HILL COLEMAN LOOP CHECKPOINT AFTER LEAVING THE VALLEY FORD REST STOP. HARD CUTOFF TIME IS 12:00 for DM riders .    While the century riders are starting to head back south, you are about to taste some of the best hill climbs anywhere. The climb up Bay Hill Rd. is beautiful with grand vistas of the Pacific once you have earned the crest.  It is a quick descent (rough road) to Hwy 1 for some very scenic miles of coastline before turning onto Coleman Valley Rd. Coleman Valley Rd. is the big climb of the 220Km course. With 60 miles on your legs, the climb is long and steep with false summits and huge views. Be sure to look south from the top. At the edge of the horizon you will see Mt Tam! This is one for the books. Remember to smile! This will forever be one of your favorites! At the top of the Coleman Valley Loop, you will find a “Mini Rest Stop” stocked with water, Gatorade and energy supplements (gels, bars, etc). This stop will not have the usual array of fruit and other foods you may be used to but you will find those down the road a few more miles at Valley Ford. The top of the Coleman Valley Loop undulates with a 400 ft descent in the middle before climbing right back up (gotta love that!). The final descent on remote Joy Rd  is very big and long, and the two lane road narrows in places, so watch for the occasional oncoming vehicle as you negotiate some fast curves. Wide shouldered roads take you back to your 4th Rest Stop in Valley Ford (Déjà vu) at mile 86.8. The ride continues over scenic and sparsely traveled roads to the short but steep Middle Road climb with another thrilling descent to the S curve at Whittaker Bluff.  It then crosses over Highway 1 to become Fallon Two Rock Rd. which we follow to a right turn at Alexander Rd. and then a left back onto Tomales Petaluma Rd for the  trip back down  Chileno Valley Rd.   A rest stop awaits at the historic Laguna School  before you climb back over the Wilson Hill to Hicks Valley Rd.    USE EXTREME CAUTION DESCENDING. THERE IS A SHARP LEFT TURN AT THE BOTTOM OF THE HILL. The route continues along the rolling hills of Hicks Valley Road before turning west on Pt. Reyes-Petaluma Road, taking riders past the Cheese Factory to a slight climb and a very fast descent to Nicasio Reservoir and Nicasio Valley Road. A relatively flat stretch lead to the fifth and final rest stop at the Nicasio Schoolhouse.   A few miles later, riders begin the climb back up Lucas Valley Road to Big Rock. Riders should exercise caution on the DEMANDING DESCENT FROM BIG ROCK AT LUCAS VALLEY ROAD. This descent has several sharp left-hand turns with a decreasing radius. The remainder of the route is almost all downhill to the finish.



MT TAM DOUBLE CENTURY 

 All information and course description can be found HERE


DISCLAIMER

The Marin Cyclists Bike Club and the Marin Century ride director reserve the right to refuse entry, disqualify, or remove anyone from the course for reasons of the their own safety, for the safety of others, for violation of any rules above or of the California vehicle code or for any other reason including the well being of the rider, other riders, the ride, or the Marin Cyclist Club. The decision of the ride director is final.