I finally got to the Lucas Valley and Loma Alta sections of the Bay Area Ridge Trail in September, and re-hiked from White Hill to San Francisco, on a five day backpack trip in September (yes, posting this late because I’d forgotten to earlier).
As usual, this was transit accessible section: Capitol Corridor to Richmond, AC Transit 72M to west Richmond, Golden Gate Transit 40 to San Rafael, and Marin Transit 245 to the intersection of Lucas Valley Road and Gallinas Road. The a longer walk than most trips along Lucas Valley Road, 3.4 miles (5.5 km), most with a wide shoulder or parallel residential streets, but some unpleasant along narrow shoulders. It would have been a longer walk, but some women playing tennis recommended that I head up Luiz Fire Road to the ridge, much better than continuing along Lucas Valley Road.
Finally on trail (fire road) again, the steep climb opened up great views to the south and east. At the top of the ridge, I turned west to meet with the end of the Ridge Trail as it comes up from Big Rock. I had always assumed that Big Rock was on top of Big Rock Ridge, but in fact it is in the low gap where Lucas Valley Road goes from Lucas Valley to Nicasio Valley. Of course as always, there are great views from the ridge. The end/start of the ridge trail is further west along the ridge, and the Big Rock Trail (as called the Lucas Valley Trail) heads downhill towards Big Rock, sometimes on fire roads and sometimes on single track.
Crossing Lucas Valley Road in a tunnel, the trail ascends Loma Alta Fire Road through private ranch lands, and then into the Loma Alta Preserve, where is descends to Sir Francis Drake Blvd. I had forgotten, after a summer of backpacking in the Sierra, how damp and foggy the coast ranges can be, a different world.
From this point to San Francisco, I’ve hiked the Ridge Trail in the past, Ridge Trail: White Hill to Pantoll 2017-10 and ADT9: San Francisco to Point Reyes 2013-11, but it is a favorite section, so I did it again. People are outside much more than usual as a result of the pandemic, and the trails were crowded through Samuel Taylor State Park, the Matt Davis Trail north of Pantoll Station, and around Tennessee Valley. I camped at the Pantoll campground, which has a lower cost backpacker site, and again at Haypress campground near Tennessee Valley. On the other hand, I saw almost no one on the Bolinas Ridge section.
After some time in San Francisco, I took San Francisco Bay Ferry to Oakland, and Capitol Corridor train back home to Sacramento.
This hike was approximately 46.4 miles (74.7 km) from the start to the north end of the Golden Gate Bridge, which is the official zero point of the trail, though of course I also walked the bridge and into San Francisco.
Photos on Flickr: https://www.flickr.com/photos/allisondan/albums/72157716600491713; Bay Area Ridge Trail collection on Flickr: https://www.flickr.com/photos/allisondan/collections/72157708271186714/.