ADT-CA-7 2021-05

Last weekend I did segment 7 of the American Discovery Trail from Antioch to Walnut Creek. I’ve done parts of this trip a number of times (Berkeley to Clayton¬†backpack, and others), but the only whole trip I’ve done was in 2014 (ADT7: Antioch to Walnut Creek¬†2014-01).

As always, my access was by train and transit. Capitol Corridor from Sacramento to Martinez, then San Joaquins from Martinez to Antioch. The schedule doesn’t really work, but it gave me plenty of time in Martinez to walk over to El Cielo Brewing to have a beer. On the way back, Pleasant Hill BART to Richmond BART, and then Capitol Corridor back to Sacramento. It is a short 0.3 mile walk from the ADT to Pleasant Hill BART. The walk from the Antioch Amtrak station to the trail is longer, about 3 miles, but if I’d used BART instead to Antioch, it would have been a shorter 2.5 miles.

The segment starts on the far shore of the Contra Loma Reservoir. No idea why, it should start at where it the ADT leaves the Contra Costa Canal Trail/Delta De Anza Trail and heads south into Antioch Community Park. The trail then winds up into the hills of Black Diamond Mines preserve, using ranch/fire roads. It climbs way up, with good views. I camped on the ridge, and didn’t sleep much at all for the howling wind all night. The trail then descends to the Somersville townsite, one of the early mining towns, and then climbs again to high ridges with fewer views, and then a long descent into the town of Clayton. Clayton has a coffee shop, a convenience store, a few restaurants, and a nice park. The is the old part of Clayton, a real town, not the new part of Clayton which is just an exurb of Concord.

hills and oaks of Black Diamond Mines preserve

From Clayton the trail along a wash and across the fan heads into Mitchell Canyon and then begins the long climb to Mount Diablo. The Mokelumne Coast to Crest Trail, which is mostly coincident with the ADT, deviates here to go up Donner Creek, east of Mitchell Canyon, and then rejoins past Deer Flat. The trail up Mitchell is gradual until it heads up steeply through switchbacks to reach Deer Flat. Deer Flat once had developed water, but not in years, and Mitchell Canyon had only a trickle for a short distance. The route then circles to the east before climbing very steeply up to Prospectors Gap. There is a spring off the trail, on Donner Creek, but I forgot to look to see if it had water this year. The plumes of clematis seeds decorate much of the other vegetation all the way up the trail. The trail/road then heads around the east and south side of Mount Diablo. The official ADT route did not formerly go to the top of the peak, but apparently it now does, but I skipped it for being late in the day and very windy.

clematis seed plumes

From the peak, or where the ADT meets the road to the peak, the Summit Trail and ADT route heads down the south slope of Mount Diablo, zig-zagging close to and then away from the road. The park has turned off nearly all water sources, even in the campgrounds, and the only sources I could find were hidden away from the public. This is a reasonable response to the drought, I guess, but sure makes it hard on long distance hikers.

During the night the fog came in heavy, and in the morning all the isolated trees had circles of wet ground around them, water that is captured from the fog and then drops to the ground. It either doesn’t happen in forested areas, or if it does, is not as obvious, but for isolated trees in the woodlands, it must really make a difference.

fog droplets on grey pine needles

The next day I followed the route out Wall Point Road through the park, and then regional park, and then city park, then the edge of Walnut Creek, all the way to Heather Farm Park. There is a lot of cattle grazing on these lands, useful to keep the vegetation down that would carry fire, but really there wasn’t much left to eat, and I think the cows should be off by now in a dry year. There were also a lot of people out hiking and bicycling! This is a popular trail for people in the Walnut Creek area, and perhaps beyond. The park is the first place with water available in quite some miles.

ADT segment 7 ends at the bottom of Heather Farm where the trail meets the Contra Costa Canal Trail. Segment 8 heads west along the canal. I think the break point of the two segments should actually be where the Contra Costa Canal Trail crosses the Iron Horse Trail. At that point, it is 0.3 miles north to Pleasant Hill BART station with BART and buses, or about 2 miles south to Walnut Creek BART station with BART and more buses. I realize many people dayhiking on the ADT just drive to trailheads, but the long distance hikers need transit access points and stores for resupply. I went to Pleasant Hill BART, took BART to Richmond, and home on the Capitol Corridor.

Photos on Flickr: https://www.flickr.com/photos/allisondan/albums/72157719235713289

ADT collection on Flickr: https://www.flickr.com/photos/allisondan/collections/72157637788624964/

Other ADT blog posts: https://allisondan.wordpress.com/category/backpacking-hiking/american-discovery-trail/

I have been working on creating routes, traced on the trails in GaiaGPS, for the California segments. I am not making any claim that these always reflect the current route, nor match on-the-ground signing, but you may find them useful. I just purchased the 2018-04 version of the ADT California tracks and waypoints, and will be checking them against these routes over time.

ADT-CA-1: https://www.gaiagps.com/datasummary/route/9ceb43ee-2915-420d-9c80-57de46102477/

ADT-CA-2: not completed

ADT-CA-3: https://www.gaiagps.com/datasummary/route/2a7cbb45-1031-4df1-a5a8-d8a3dd6c4212/

ADT-CA-4: https://www.gaiagps.com/datasummary/route/e75135ac-d79b-4762-b6fc-da5a6a994acd/

ADT-CA-5: https://www.gaiagps.com/datasummary/route/b38deb6c-f511-4874-bc29-e4ef55801258/

ADT-CA-6: https://www.gaiagps.com/datasummary/route/010f9b3f-6613-428b-997f-b589790b396a/

ADT-CA-7: https://www.gaiagps.com/datasummary/route/9d43af35-dc9b-4ca4-99e0-acb7a81e9897/

ADT-CA-8: https://www.gaiagps.com/datasummary/route/effe8e4b-2e40-412d-92b2-74cc387d9846/

ADT-CA-9: https://www.gaiagps.com/datasummary/route/25b7ca99-66fe-42d0-acd6-f40e545b7a9e/

oaks in Black Diamond

Berkeley to Clayton backpack 2016-06

MtDiablo-foothills
Mt. Diablo foothills

Continuing my repeat trips on the American Discovery Trail, this time I backpacked from Berkeley to Clayton, along American Discovery Trail segments 8 and 7. I skipped the walk from Jack London Square to Berkeley, as I knew my feet did not need all that walking on pavement. So I started from the Berkeley BART station, heading up Bancroft to the Jordan Fire Trail up through Strawberry Canyon on the UC Berkeley campus. I deviated from the route to follow what I’m calling Panoramic Ridge, along Panoramic Drive and then the ridge top trail, sometimes quite steep, up to Grizzly Peak Rd and over into Tilden Park near the steam train. I walked along Skyline Trail north to Inspiration Point and then down to cross San Pablo Creek and up to Briones Reservoir, to Bear Creek staging area for for a late lunch, and then up onto the ridge. All along the trail today there was coyote scat with plum pits in it. Plums are abundant this year, and there are quite a number of either historical or feral plums along the trail. I camped near Russell Peak, where there happens to be a flat spot to sleep and picnic table. There are no legal spots to camp along this route, so I just pick less obvious spots. The night was cold and windy.

The next day I went down along the ADT to Walnut Creek and stopped by a Starbucks to recharge my phone and iPod (which I’d left playing during the night and depleted) and have a cup of iced tea. Then along the canal, through Heather Glen Park, and up onto Shell Ridge which heads southeast into the foothills of Mt. Diablo. Though the grass is all dried and the flowers few, this is a still a beautiful ridge. I camped again at Wall Point, where I’d camped in January 2014. That being a warm winter and this being a stretch of cool weather during the summer, the temps and wind were about the same.

In the morning clouds were hanging about the top of Mt. Diablo. I thought the climb to the top would be hard, about 2300 feet from campsite to peak, but it turned out to be easy in the morning when I was fresh. It was too cold to hang around on the peak, but the views in nearly all directions are worth going on any day. Heading down the north side, I took the Bald Ridge trail instead of the road, avoiding the steep loose surface, though the trail itself was pretty steep and I had to dance around poison oak. Mt. Diablo is simply steep, and if there are non-steep trails there, I haven’t been on them yet. I walked down Mitchell Canyon, and into the town of Clayton. Took the bus to Concord BART, BART to Richmond, and the Amtrak Capitol Corridor home to Sacramento.

This is my third time on the ADT-CA-8 segment, and second on the ADT-CA-7 segment. I did not do the part from Clayton to Antioch, though it would have been a good day to do so with the much cooler temperatures on this very sunny route. I am making an effort to take my feet to the point where they are uncomfortable and sore, but not to the point of damage, and Clayton seemed like a good balance.

This trip is a strange mix of urban and wild lands. It is not just that it starts in Berkeley, crosses through Walnut Creek, and ends in Clayton, but that from any vantage point there are views to the suburbs and often even to San Francisco. But closer to hand, or to foot, the country can be quite wild, and seem like it is miles away from anything. At night, looking out, the lights of some city or another are very visible, but looking up, there are the stars and in this case the first quarter moon. This is also a trail with a number of entry and exit points, if desired, including Orinda, Lafayette, Walnut Creek and Clayton. It could be done as day hikes as well, and in fact I will likely to back and explore some of the side trails that look interesting but are not the main route.

Photos on Flickr

ADT7: Antioch to Walnut Creek 2014-01

Buckeye leafing out
Buckeye leafing out

This weekend I completed the Antioch to Walnut Creek segment of the American Discovery Trail, up and over Mount Diablo. This is the last of the California segments for me, so I’ve now walked across California. Though the ADT materials and I use the word “trail,” much of this route is actually fire and farm roads. These are still pleasant to walk, and there are some stretches of real trail interspersed.

I started out in Antioch, getting there on Amtrak and BART and TriDelta bus. The official start of the segment is up in Contra Loma Regional Park, but I’d finished segment 6 in Antioch Community Park, closer to public transit, so that is where I started again. The trail soon enters Black Diamond Mines Regional Park (East Bay Regional Park District) and heads up into the dry brown hills and eventually to the old town of Somersville. Scattered oaks and cows mark the hills, but gradually thicken to oak woodlands and chaparral. Some buckeyes are leafing out, and there is a bit of green grass in a few wetter areas, but mostly it looks like the end of summer, no new growth of winter or spring.

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