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To reach the southern trailhead from US 101, exit on Sir Francis Drake Boulevard. Head west on Sir Francis Drake Boulevard toward San Anselmo for about 18 miles. At the intersection of Sir Francis Drake Boulevard and Platform Bridge Road turn left. The trailhead is at the end of the short metal bridge on your right. On the left is a small parking lot with a one-hour limit. There are various places to pull off and park along Sir Francis Drake Boulevard without time limits.
To reach the northern trailhead from US 101, exit on Sir Francis Drake Boulevard. Drive past the intersection of Sir Francis Drake Boulevard and Platform Bridge Road, crossing over a concrete bridge. Shortly after crossing the bridge you see an unmarked road on your right. Turn right on this road then turn left and park on an abandoned concrete street. Walk toward an old bridge. The trail entrance is marked with a large sign that says CROSS MARIN TRAIL.
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We walked the section between shafter bridge and Samuel P Tayler campground. There was plenty of parking when we pulled in around 10am but there were several cars waiting when we got back around noon. The trail to the campground is gravel and flat. Nice simple path for easy biking. I wouldn’t do it with a road bike but a city bike or something with larger tires would be fine. Walking was also nice. The other nice feature are the restrooms near the campground.
The start of the trail by the fish viewing area is a FIRE TRAIL. The second half, after crossing the road, is paved asphalt. Unfortunately I showed up with my road bike and not my mountain bike, so my ride was a short one.
The trail has beginnings at Shafter Bridge, just West of Lagunitas on Sir Francis Drake Blvd . A salmon viewing spot at the bridge has limited 2 hour parking. If parking here, you must cross Sir Francis Drake to the foot, bicycle bridge over the creek. Riding west for about 2 miles on well maintained dirt path, you reach Samuel P. Taylor State Park--no fee to ride through the park, where the path becomes paved. The paved section is about 3 miles long running from the park to Platform Bridge Road, where there is also parking.
Beautiful trail--Redwoods, grasslands, oaks and the entire trail runs beside Lagunitas Creek.
There is no longer a "dead end" as a bridge has been built across the creek near Shafter Bridge. Enjoy--easy flat ride for all levels.
This trail is paved and virtually flat going through Golden Gate Recreation Area and Samuel P. Park. From Platform Bridge at intersection of Platform Bridge Road and Sir Francis Drake Blvd. to campground and park headquarters is paved--very scenic, following Lagunitas Creek through Redwoods. Beyond the Samuel P. Park Group Picnic area the trail is packed gravel. It will have some puddles after rain. The path ends at a new bicycle, pedestrian bridge crossing Lagunitas Creek at Sir Francis Drake Blvd. near the town of Lagunitas. By entering at Platform Bridge, there is no fee to go through the park. You can access the path by entering Samuel P. Park at main entrance off of Sir Francis Drake Blvd. There is a day use fee required to enter at this point.
There are mountain bike options leading off of this trail in to Golden Gate Recreation Area, for experienced riders--uphill!!
"Can't wait for this one to be completed. If you try to bike here from SF, be advised you have to travel many miles on the shoulder of a rather busy road before you get here. Also, be advised that travelling east on the trail, you must exit at the group picnic area, if you try and go further you wind up at a dead end and must backtrack for over a mile to get back to the road!"
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