Road Map: http://www.transitandtrails.org/trailheads/80/
LOOK FOR: parking is off road next to the cross street of West Nicasio Road. If you pass this street while driving on Nicasio Valley Road, you went too far.
Hike is at Roy's Redwoods, Nicasio. The start of the trail is on-leash, but there are a couple off-leash areas too. This is a nicely shaded hike amidst redwoods
The parking is easy to miss if you are speeding down the road. There are signed gates on parallel sides of the road, with the gathering spot being on the East gate. If you get lost, my # is[masked]-8732.
If you reach Nicasio Ranch (or Smith Ranch Road to Terra Linda), you have driven too far. This trail is a couple minutes north of the Sir Francis Drake Blvd road (past the golf course).