200 KM DOUBLE METRIC
THIS COURSE INCLUDES STEEP CLIMBS AND TECHNICAL DESCENTS.
Tbegins 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 Pine Mountain, the road descends in a series of tight turns with a decreasing radius to four miles of rollers ending at a dam at Alpine Lake. A three-mile ascent takes riders to the ridge where we continue over the top to and a winding descent down to Highway 1 at the Bolinas Junction. We turn left to travel South on Highway 1 past the Bolinas Lagoon and through Stinson Beach to a left turn at Panoramic. The open switchbacks allow beautiful views of the Pacific all the way to the top where it enters the forest and then begins to a sweeping descent back with a few rollers to Highway 1 North. The turn here is a very sharp right. Use caution as car traffic has the right of way an can approach at high speeds. Highway descends to Muir Beach and our second Rest stop at the Golden Gate Stables.
We then continue North again passing the Bolinas Lagoon to the hamlet of Olema where we make a right onto Sir Francis Drake for the climb up and over to Platform Bridge Rd. It's a sharp left at the bottom of the hill to the Water Stop before we continue traveling inland passing the 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. A few miles down the road we turn right to climb the Wilson Hill and onto Chileno Valley Rd. The rest stop is about a mile after the turn then you reverse back and make a left to head into Petaluma. Turn right on Windsor Rd which leads to D St where you make a right and follow the road back to the reservoir to the left turn on Nicasio and the home stretch. A relatively flat stretch lead to the 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.