The highest summits in the Diablo Range are located in the southeast corner of
San Benito County on BLM land designated as the Clear Creek Management Area. It
used to be called the Clear Creek Recreational Area and was a very popular OHV
site until it was discovered that all those OHV vehicles were trailing clouds
of dust in the dry summer months containing naturally occurring asbestos
particles. Since asbestos has been associated with lung cancer, the government
decided there was some risk to human health and closed off the entire area in
2008 until a comprehensive plan could be developed on what to do about it. It's
been almost five years now and there is still no plan. The recreational users
are up in arms, believing the government plan all along was to limit OHV use in
the area and that
they're using the asbestos issue as a convenient excuse. Though
officially closed, it seems no physical barriers have been erected to keep
vehicles out. I've been to the area on several occasions since 2008 and have
found the roads ungated. The management area is huge, encompassing several
hundred square miles, and one gets the feeling of isolation with nary a soul
to be found. The main problem for access now is that with the closure the roads
are no longer maintained and they are falling into disrepair. High clearance &
4WD are needed especially in the winter season when the roads can be muddy and
treacherous. I had talked Adam into joining me for an excursion to the area to
give him some 4x4 fun (and me access, since my own vehicles are woefully not up
to the task). He's not so hot on the mundane peak hikes and
bushwhacking some might entail, so I enticed him with an additional day of
rock climbing in Pinnacles NP where he could do all the leading. We had done
this the day prior, spending the night camped off New Idria Rd. In the morning
we drove to the 
old mining town (current population: 
one) and
into the Management Area.
The primary peaks I was interested in were two CC-listed summits,
Loma Atravesada
and Wright Mountain. Secondary was a list of higher named summits around San
Benito Mountain, the county highpoint which both of us had visited on previous
occasions when we were pursuing the list of county highpoints. The only sign
of closure we found was a single 
orange sign
indicating "Road Closed" alongside
the roadway. The ground was wet in places, icy in others, with some snow found
on the north-facing slopes. It had been about a week since the last storm had
come through the area. Because it was on our way and as Adam commented, "we're
right there", we first paid a visit to San Benito Mountain, driving to
the top where a gate surrounds a tower complex. 
The highpoint
is located a minute's scramble on the east side up a pile of rock.
The register there suggests the
OHV folks have not neglected the area anymore than us peakbaggers.
40 minutes more driving towards the south brought us to the
southwest side of Wright Mountain. There is no road going to this
non-descript summit, but the 
hike to the top takes only five minutes
through modest brush. An old wooden stake, some rusty wire and a rusty steel
pole sunk into the ground were all we found at 
the sad summit. The best
view was to 
the south, looking down Pine Canyon to the Los Gatos Creek
drainage. Through the trees to 
the north we could make out the
highpoint of Loma Atravesada about two miles away, across the Arroyo Leona
drainage. We 
retreated via the same route, driving east to the
edge of the management area. We encountered 
a closed gate, the same we
had found when heading to Joaquin Rocks a few years earlier. I spent some time
closely inspecting the locks and chain which paid off - I found one of the links
had been cut through to allow the gate to be opened. This would save
us more
than a mile of hiking each way today. Had I found it a few years ago, it would
have saved us five miles of hiking each way to Joaquin Rocks. We parked at
a junction with an old road that runs along the ridgeline connecting
Loma Atravesada to the main crest of Joaquin Ridge. The route to our Loma
Atravesada (also called Three Sisters on the older 15' map) would be about three
and half miles. Two miles of this would be 
on road, the rest
cross-country. It was the latter part that I was most concerned about of
course and would prove the most interesting of the day.
The road we followed has been used periodically by motorcyclists, but it has
been many years since a truck or other 4-wheeled vehicle has driven on it. We
were happy to be able to use it without any bushwhacking, making good time for
the first two mile stretch. It was a pleasant stroll on the ridgeline for the
most part with some open 
grassy stretches and views off both sides,
including a good look at Loma Atravesada 
in front of us. Some of the
brush we could see ahead was thick and difficult-looking. It would be no picnic,
that much was certain. We reached the end of the easy part where the road peaks
briefly before starting to drop to the southwest. A 
wall of brush was
almost immediately encountered on the ridge. Had we stayed atop the crest of the
ridge and pushed through the immediate difficulty, we'd have quickly found
easier going behind it. This we found on the way back, but at the moment it
looked impenetrable. So we dropped east off the ridge for a hundred feet or so,
looking for a way through. We ended up 
ducking and crawling through a
nasty stretch of mature chaparral. It took us only ten minutes to cover the
hundred yards to 
easier ground, but it seemed much, much longer. The
dust from the dead layers of brush would get in our throats and eyes.
Adam spent some time trying to clear one eye that had picked up a
piece of something uncomfortable.
Past this initial section, things got easier as we climbed
more open slopes to the main ridgeline that defines Loma Atravesada.
Ten minutes later we were on the ridge 
heading west and the easy stuff
soon gave out. We needed to drop down the west side of a local highpoint to a
saddle and this half mile section in the
middle of the ridge traverse proved the bushwhacking crux. There were no open
sections, no animal trails that we could find, just 
heavy brush up to
head level, a mix of burned old stuff and vigorous new growth. I took
a sharp jab 
in the leg that didn't rip my pants but somehow managed
to puncture the skin underneath and draw out some blood. We discovered
ticks on our clothing and spent some time doing periodic tick checks
and flicking them off. To his credit, Adam didn't get freaked out by the
parasites as he had on a previous trip to
Nevada. Perhaps he was growing more used to them. We ended up taking slightly
different paths through the heavy brush, each of us hoping to encounter a lucky
find of easy going, neither of us finding it. After half an hour of such
nonesense wandering along the ridge and pushing through this stuff, we emerged
near the base of the east summit on some rocky slabs that gave us some welcomed
relief.
The slabs 
led easily up to the east summit in fifteen minutes. Though
we weren't on the highest point, we could now see that the rest of the route to
the west summit was a straightforward hike taking but ten more
minutes. It was just after 11a when we 
topped out. We were not
surprised to find no register or survey tower or even a cairn. Surveyors had no
doubt been to the summit (a spot elevation is given on the 7.5' topo for this
point), but probably few others. It was about 
as isolated as one could
get in these parts, it seemed. Our elevation was high enough to see over the
Central Valley haze, the 
white snows of the Sierra Nevada visible for
a long stretch across the range.
It took us just over an hour to make the return over the cross-country portion.
We were happy to find the 
easier exit along the ridge rather than
having to redo the crawling and dust inhalation. We did a thorough check for
ticks on our clothing once back on 
the old road, lifting up flaps and
looking in other crannies that these pests like to hide in. Another hour saw us
back to the 4Runner waiting for us on the better road. We had to spend
some time to get the sticky mud off our boots that had collected on
our walk over the wet ground for that last half mile.
Having dispensed with the most difficult part of the day and just past 1p, what followed was a series of seven easy summits, some silly drive-ups, others more interesting.
Santa Rita Peak
This is the second highest summit in the Diablo Range after San Benito Mtn, located about 3 miles SE of
San Benito and 4 miles west of Loma
Atravesada. The summit provides an 
excellent view of the latter.
I had hiked to the summit of Santa Rita a few years earlier the hard way,
starting from Los Gatos Rd and reaching the top after going over Condon Peak
and many miles. The easy way takes only five minutes. We 
parked
northeast of the summit at 
a radio facility, hiking an old
gravel road to the rocky base of the summit rocks. Easy class 3 (or
stiff class 2, take your pick) 
scrambling leads to the volcanic
highpoint.
Peak 5,121ft
This unnamed summit is the third highest in the range and one of only three exceeding 5,000ft in elevation. It is located roughly between San Benito and Santa Rita, sporting not much over 300ft of prominence. A
narrow road
(T159 or the Red Rocks Trail) goes nearly over the summit, a short minute's
worth of easy bushwhacking 
to reach. Adam made it harder by
parking so that I'd have to crawl
through the brush just to get out of the car. "Oh, sorry. Did I just scratch
your car door? What, did you expect me to climb through the window?"
Alta Peak
I'm not even sure why this peak has a name. It has less than 100ft of prominence and is really just a bump along San Benito Mtn's SW Ridge. We had to drive nearly to the summit of San Benito a second time to access the side road that traverse's San Benito's south side to reach
a junction at a saddle
east of Alta Peak. A 
motorcycle trail goes right over
the top, taking us five minutes to reach. A very silly peak.
San Carlos Peak
San Carlos is located about a mile and a half northwest of San Benito. It has had significant mining on its flanks in years past. I had been to this peak when I first visited San Benito nine years earlier, but Adam hadn't visited it, so off we went. A rough 4WD road led us to the edge of the San Carlos Mines, high on the west side of the peak. An open, steel-lined
mineshaft has been
driven deep
into the ground here. We dropped a rock and were astounded by how long it took
for the sounds to die out - it was very deep indeed. We picked up more rocks
and did it again and again, giggling like the children we were. The hike to the
summit took all of five minutes. The hardest part was getting above
the road cut in the hillside, going up 
loose, rocky dirt
that barely held together. There was little of interest at 
the summit,
though not a bad 
view of San Benito Mtn.
North Hill
Just to the north of San Carlos and the mines is this smaller summit. It would have been an easy walk of a few minutes from the saddle between the two peaks, but I managed to talk Adam into attempting the drive-up route over a road that was badly overgrown.
The brush made awful scraping noises as we pushed
through 
the heavy stuff, Adam's radio blaring out head-banging music
to add to the ridiculousness of the situation. The cacophony had us laughing
uncontrollably all the way to 
the summit of North Hill. It may have
been the first drive-up in years. When Adam found the 
busted antenna
and 
scratches that covered two sides
of his vehicle, he sobered up with some regrets. Noting his change in tone, I
apologized for talking him into it. I actually thought it was the antenna he
was most concerned about, but that didn't seem to bother him at all. It was the
scratches criss-crossing the black painted sides that had his attention. I have
little doubt he'll forget most of those, especially after we put more on top of
those in the next few years.
Idria Peak and Sampson Peak
The last two summits of the day are located a few miles further west, near the northern boundary of the management area. They would require a hike of some three miles round trip, nothing difficult except we were starting to run out of daylight. The toughest part was reaching
the trailhead as we found
the muddiest
conditions on the badly rutted R1, the main road coming up from Clear Creek
starting at Los Gatos Rd. The road has a steep dropoff to one side which made
me a bit nervous as the truck would slip and slide out as we tried to gain
traction going uphill. Adam did well to get us to the pass and then partway
along the ridge to Idria Peak before the road became navigable only by
motorcycle. It was after 4:30p when we parked and started out.
There were no difficulties in reaching the summits. Idria Peak is only a few
feet lower than Sampson and is located along the ridge a short distance from
our starting point. The road goes right 
over the top and we didn't
even bother to slow down for more than a quick picture. We reached
the summit of Sampson at 
the end of the north-trending
ridgeline around 5:10p. It has a small, rocky summit that appears more
peak-like than several of the ones we had recently
visited. There are 
good views in all directions, particularly to
the north where the terrain drops off more dramatically to the much
lower terrain that comprises the Griswold and Ciervo Hills. Unfortunately,
afternoon hazed marred much of the view in that direction. Adam was
amused to find a small 
socket wrench near the summit - probably
dropped by one of the OHV enthusiasts to have visited the peak. We returned
back over 
Idria Peak and back to our vehicle. The last rays of the sun
were settling over 
San Benito Mtn as we returned, the sun making a
glorious 
orange and red exit over 
the western horizon as we
finished.
It would still be a long hour-plus drive back to my van and another two hours to drive home to San Jose, but it was a fine end to a good day tagging the highest peaks in the Diablo Range.