The Bay Area Ridge Trail is located in San Francisco; there is over 325 miles of area open for hiking, horse riding and bike riding.
The first segment of the trail was dedicated in 1989, over the following years more public land areas were added to the trail network which led to a celebration of the 100th mile in 1990 and the 200th mile in 1995. The rate of progress of the trail system takes time as new parklands are to be acquired and trails need to be designed and built, the 300th mile celebration was in 2006.
The trail can be used by visitors of all ages and abilities. Wheelchair user's area able to start from the head of the Redwood Trail along the well-graded path through the redwood grove, past the wildflowers and huckleberry shrubs that line the trail. After crossing Purisima Creek Trail is a flat area with a picnic table which is a perfect place to enjoy a snack and enjoy the views of the forest.
The trail area is open from dawn until a half hour after sunset. Dogs are not permitted at the area, bike riders are required to wear helmets and a 15-mile speed limit is mandatory. The trail requires the help of many volunteers in many areas. These areas include helping with events, setting up and cleaning up, staffing a rest station or guiding a sweep hike, bike ride or equestrian ride. Volunteers can also assist with Trail Work Parties and Habitat Restoration where works are completed to build or maintain areas of the trail.