Tue, May 25, 2021
|
With: | Kristine Swigart |
Thornburg Peak lies in the northeast corner of the Mokelumne Wilderness a few
miles west of Markleeville in Alpine County. I had been wanting to do a loop
of it along with three unnamed summits around the Spratt Creek drainage for a
few years now. Kirk Dixon had sent me a brief email a few weeks earlier after
climbing it, leading me to guess there would be little snow left. Kristine had
another hike in mind for our second day in the area, but it was easy enough to
talk her into this one. It turned out to be a delightful adventure with great
weather, fine views, and remarkably open terrain that was almost too easy. I
had camped the night along Spratt Creek about a mile below the Thornburg Canyon
Trailhead. Kristine arrived at the appointed hour from her home near Topaz
Lake, and after leaving her car where I had camped, we drove together in the
Jeep up to the TH. The road was in better shape than expected, one that
pretty much any vehicle can navigate it.
We spent the first hour and change hiking the trail through forest, with
some views of Pleasant Valley to the south, covering about 3mi while climbing
more than 1,500ft. We then headed cross-country to the south towards Thornburg,
crossing the creek before starting the
steep climb of 1,000ft
over less than half a mile. This was the hardest part of the day, but the
forest understory was mostly clear with good footing and little brush. Just
before the summit, the forest
gives way to grass and low shrubs, and
views begin to open. We spent about 2hrs in reaching
Thornburg Peak,
the highpoint of the ridge separating Thornburg Canyon to the north from
Pleasant Valley to the south. The rocky
summit provides unobstructed views, as would all the peaks we visited today.
Raymond Peak and The Sinister rise prominently to
the south,
both still sporting significant snow on their northern aspects.
After leaving a register, we turned west to follow the ridge connected
to Peak 8,602ft, about 2mi in that direction. A very
large cairn is
encountered shortly after
leaving Thornburg, an odd location since it
was well below the highpoint.
The ridgeline makes for very easy
cross-country travel, mostly compacted talus with very little vegetation. Jeff
Davis Peak (now "Da-ek Dow Go-et") rises sharply to
the west, another
2mi beyond Peak 8,602ft. It is one of the
better-looking summits in
the area and it's understandable why it made the OGUL list. Kristine and I have
both been to its summit along with the higher Markleeville Peak to the north
of it, so we would have no reason to revisit them today (It would make for a
full day to add these, but they would garner many cred points). We spent a full
hour getting between the peaks, finding this
second summit open, but
wide and flattish and not particularly noteworthy. Worse, there was no leeward
side to duck behind to get out of the cold wind while we rested, so we ended up
lying nearly prone facing east for a few minutes, long enough to leave a second
register.
Upon leaving Peak 8,602ft the ridgeline turns northwest. We shortly
encountered the remnants of a cornice that forms where wind blows strongly over
the ridge during the winter months.
Kristine preferred walking on the
snow while I stuck more to the ridgetop. The ridge then drops to a saddle
marking the western boundary of the Spratt Creek drainage. There was some minor
brush to work though along the saddle, then more
open slopes leading
up to
Pt. 8,770ft. This is a minor point on the East Ridge of
Markleeville Peak that we initially mistook as our third summit, Peak
8,820ft. I realized this mistake about halfway up, but it didn't matter much -
we would have to ascend most of 8,770ft in order to gain the
connecting ridgeline to Peak 8,820ft. Once on the ridge, it was
easy walking northeast to reach our target an hour after leaving the
previous summit. The summit of Peak 8,820ft is rocky and
class 2-3
when approached from the southwest, much easier from the opposite side. We had
a nice
little alcove in which to duck out of the wind while we took a
short break and penned
another register.
The distance to the fourth summit, Peak 8,302ft was only a mile, half the
distance of the previous legs, but it would still take us an hour to reach, due
to the intervening terrain. The first half dropping down towards the
saddle in the connnecting ridge was mostly more of the same talus, but there
were
volcanic dikes running orthogonal to our path that needed to be
circumvented. The last of these features formed a pair of striking pinnacles
that caught Kristine's attention and we diverted a short distance to check out
the higher one. It had no routes on the north sides that we approached it from,
but
the south side appeared to offer two potential scrambling routes.
While Kristine went up to check out
the righthand side, I went to the
lefthand one. I got only partway up, finding a 10-foot section that went close
to vertical that made me most uncomfortable with the questionable holds the rock
presented. Kristine likewise backed down on the other route, while I went over
to give it a try myself. I worked my way through the hardest section by climbing
the ridge directly, judging it class 4 and a little nervy. I took
a few pics from
the top then came back down, but my efforts did not convince Kristine and she
declined to try again. I thought it was a fun little side-project and though
it has little prominence, I gave it a name and a page on PB, dubbing it
"Kristines Kuriosity."
Continuing on, we soon realized we had more rocky obstacles in our way, though
these were granitic in nature. They formed the divide near the saddle between
Musser and Jarvis Creek to the north, and Spratt Creek to the south. It
seems as if the upper portion of Musser and Jarvis Creek once flowed into
Thornburg Canyon (and Spratt Creek), but cut an alternate channel at a later
date, probably eons ago. The result is a surprisingly deep canyon on
the south side that offered no easy way around. We scrambled our way
through the granite
formations favoring the north side until we were past them. From the saddle,
the ascent of Peak 8,302ft is straightforward, steep through forest to start,
then more of the sagebrush and
open terrain nearing
the summit. We left our
last register here while taking our
final break. It was now 11:30a and time to head back.
A direct descent to the trail heading southeast would have taken us through
more serious cliff bands, so we headed SSW back to Thornburg Canyon,
aiming for
the trail where we had left it to go to Thornburg Peak earlier in the morning.
This went exceedingly well (Kristine had worried about this section being
brushy, but I projected faux overconfidence that just happened to be correct),
and we were back to
the trail by noon. It was then a small matter to
hike down the three miles of
trail descending
Spratt Creek to
reach
the trailhead by 1p. If I'd been staying
another day, we might have picked up a few other summits in the afternoon, but
I had a 4-5hr drive ahead of me to get home by evening. I drove Kristine back
to her car where we shared beers and changed into fresh clothes. We drove out
through Markleeville where we split up to head to our respective homes. A very
enjoyable day in the mountains, this one...
This page last updated: Wed Oct 25 09:34:09 2023
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