Tom Holub - Feb 24, 2008

Today's ride was a nice up-and-down starting from Fruitvale, Dimond Park.  You can take the Dimond Canyon trail up the hill, then hook up with Sunset or Bishop's Walk in Joaquin Miller, keep climbing up Sunset to Sequoia Bayview (where we ran into the bike group today), go up the new north fork of Big Trees, and then come down more or less the same way.  Actually we came down Big Trees and then went back up Sequoia Bayview and took Chaparral down.

That's a pretty epic ride (at least for a unicycle--I think it would be a pretty big bike ride, too), almost entirely wooded and protected from the elements, and with decent trail conditions the whole way.  Totally ridable, even when it's wet.  (One small exception is the stream crossing at the bottom of Dimond, which takes a bit of negotiating when the stream is high). It's nice to start in urban Oakland and immediately be in the woods riding along a pleasant creek.


Michael Kelley - Feb 23, 2008

One noteworthy exception to the remarks below: In my experience, you can ride Seaview Trail, (aka Dog Run,) from Inspiration point up to
the Train Station, in almost any weather conditions. It's rocky for most of it's length, although you might have to slog through a puddle
here and there, where drainage is poor. (In that circumstance, be sure to go through the puddle, rather than create new trail by going
around it.) It's my emergency wet weather ride.

 I meant Seaview and Quarry loop. When mentioning the exception to the Adobe Rule of the East Bay

Ted Fagerlin - Feb 23, 2008

Mitchell Canyon to the summit of Diablo is a great Winter route in the East Bay and is always ridable, even in pouring rain, sleet or snow.

If you want to get out of the East Bay to ride, but don't want to go to Marin, Rockville is a short distance away and offers something that is
fairly scarce in the East Bay. Rocky technical riding. It's also weather proof.

Eric Muhler - Feb 22, 2008

if you must ride in Winter in the East Bay, I would stay in Redwood and JM Park. They are the only reliably rideable trails in rain in my
experience in the East Bay. One particularly stinky, unrideable set of parks in the East Bay is Wildcat and Tilden. Vast sections (except
Quarry Trail) are totally unrideable for a month after significant rain has fallen. I've carried totally adobe mud bogged bikes out of
Meadow, Gorge, Curran, and several other trails as well as just finding eighth of a mile stretches of Wildcat Canyon Trail from
Alvarado up to Tilden totally impassable.

Jan 26, 2008 and Feb 23

I rode up from Ohlone College. Aware of what you're referring to, I rode 3.5 miles up the paved, one-lane Mill Creek Road from Mission Boulevard to the access gate at the 1450-foot level that hang-glider-toting vehicles use. There I accessed the gravel service road network that lead to the upper levels of Mission Peak. On the way down, by contrast, I rode the (legal!) singletrack portion of Peak Trail that parallels Mill Creek Road. Surprisingly, that section, which can be bad, was in good condition, as were the lower parts of Peak Trail that begin at Ohlone College. I think I could have ridden up on dirt beginning at Ohlone College without having to dismount because of mud.

Another east bay area that's rideable in the rain is Mission Peak. Go up the paved Mill Creek Road from Ohlone College to the entrance gate at the 1450' level. Go up the heavily graveled fire road toward Mission Peak. From there you could reverse course or, I suspect, go down the wide fire road to the Stanford Avenue trailhead and ride back on Mission Blvd. to Ohlone College. Just fine in rain.

What side did you ride from? Usually, from Ohlone college, it becomes unrideable and muddy after the second gate.

Otherwise, the views are indeed spectacular on a clear day.

Jan 06 Discussion

I am writing an article for the BTCEB Wheel Dirt, called "Where to Ride Off-Road in The East Bay in the Rain".

As you know, due to the adobe mud, many fireroads are unrideable. (ie Black
Diamond, Wildcat Canyon, etc).

Looking for input. Please tell me the places you personally have ridden your bike off-road, in the rain, or shortly after a major rain, where there was not a problem with clay (adobe).


List so Far:

Pleasanton Ridge
Joaquin Miller Park
Tilden- Big Springs/Quarry/Seaview Trails
Mt. Diablo above 2,000' (ride pavement up)
Mitchell Canyon (??)
ake Chabot Loop (??)


Rideable in the Tilden area is the following loop: start at parking
area at top of Golf Link Rd just below Grizzly and Centennial. Ride the
Grizzly-Golf loop ten times, then cross South Park Road and ride up Big
Springs to the ridge and ride out and back ten times then descend back to
South Park Drive and do hill repeats ten times. Takes about two to three
hours. No type of high tech clothing can keep you dry doing this, despite
the Gore claims.

I have two pavement rides with my Winter mt bike. #1 Ride from home
area up back roads to Grizzly Peak Blvd., then ride to Steam Train and then
down Lomas Cantadas past the stables, to El Toyonal and exit on Wildcat Cyn.
Rd., up to Inspiration Peak and ride out and back and then home. This is
about an hour and half ride.

#2 ride is from home (North Berkeley) up to the fountain on
Marin and then up the Arlington and explore every road to the east for more
steep climbs, then wander around the end of the Arlington looking at Wildcat
Creek before it goes underground, and then follow the I80 bikeway to
residential roads that parallel the BART tracks. This is about an hour and
15". For more sweat equity climb up Mosher then ride Colusa to Peet's on
Solano for tea and vegan ginger cookie.

Mt Val

There are several trails on Diablo that are rideable.
1) the legal section of summit trail between the heliport (at the top of
barbeque terrace)  and the road (just below Juniper).  This is the
section we call "ranger grade"
2) Starting at Juniper, the Burma Road, Mothers, Angel Curley loop which
comes out on North gate road at the ranch (or can be shortened by taking
59-9 to the North gate road at the top of the switchbacks)
3) Devils elbow to North Peak singletrack.  Right now its an out and
back because of big lake just below Deer Flat
4) Mitchell Canyon from Clayton to Juniper Campground.
5) Dan Cook trail (access only from Diablo lakes road; the singletrack
access has slid and will be closed indefinitely)
I have ridden all of these since the Dec 30-31 disaster, and while there
are many new hazards, they are all rideable.  In heavy rain Dan Cook is
iffy, but drains in a day or two.


I would take Chabot off of your list - there are a few sections that are impassable after the rain.


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Last Modified: March 9, 2008