Camino Alto Fire Road - Alto Bowl is a 2.5 mile moderately trafficked out and back trail located near Mill Valley, CA that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is accessible year-round. Dogs are also able to use this trail.
Great spot to take the dog! If you stick to the right at the initial fork, you can veer left down the road a ways and cut through the woods on the Octopus Trail, then go left again once you hit the fire road and you can make the walk a nice little 45 minute loop. Very pretty views, too.
Great trail but definitely would not rate it as, "difficult". Rather, it should be called, "easy"