Going up Mill Creek was pretty uneventful. You better like rocks if you do this route because they're everywhere. There is a 20 ft waterfall but it can be bypassed by taking a trail marked by cairns on the right side of the canyon. As you near the headwall, Mill Creek Canyon closes in so you have no choice but to hike in the actual creek.
The hardest part is climbing the Mill Creek Jumpoff headwall. The only research I did before this hike was John Robinson's book and he doesn't say much about how you're suppose to climb this thing. There is no way to bypass it on either the left or the right. I decided that I'd just figure it out when I got there. Later when I got home I found this info from the Sierra Club HPS site:
You can probably guess what I did. I climbed up the tan dirt! From below it really does look like the best route. It's not bad until about half way up where there is no longer a field of large rocks to support your weight. It basically becomes a very steep slope of loose, soft, unstable soil.The best route up the headwall is to ascend the gray-colored dirt up the center then, near the top, contour to the right on steep slopes to join the saddle. Avoid starting up the left side (in the tan dirt), as the ascent is not viable, becoming very steep and loose, and it is very difficult to traverse to the right from there. WARNING: the wall is concave in shape, so gets steeper with elevation. This is not apparent from below, so the tan dirt can seem to be superior. Do not fall into this trap!
Since the soil was so unstable, I duckwalked up to try to reduce the pressure on the soil and to prevent a slip-out. I also drove my trekking pole into the soil as a crude belay and to take some weight off the soil beneath my feet. Each step I took I would sink a little and then slide back 6 inches or so. I tried to plan my route so that I would reach a large boulder that looked stable every few feet. But almost nothing in that headwall is stable.
The whole thing was just too sketchy so when I was about 50 feet from the top I decided to traverse right about 30 feet to reach the saddle. This turned out to be a very bad idea!! Do not try to traverse an unstable, steep rocky slope! The right part of the tan dirt is even steeper and even more unstable. As I was going across, I used some of the rocks as hand holds. One big rock let loose and caused a huge rockfall down the headwall. Plumes of dust billowed up all around me. Crap, the soil beneath me could have let loose too. So I went back to where I was and proceeded to climb straight up. Eventually I made it to the top, which is covered in beach sand. Weird.
There is a faint use trail up to the peak from there. It's fairly steep with a couple of drop-offs down the lethal north face of Galena. One nice thing about this peak is there is no false summit. When you look up to see how far you have to go, that really is how far you have to go.
I was really dreading the descent down the headwall. It turned out okay as long as I took my time and was super careful. It helps to have experience with descending scree slopes, although this wasn't really scree. The rest of the descent was pretty miserable. Most of the rocks are very angular in shape and they're that annoying size where they're not big and heavy enough to not move when you step on them. So when you, it's like slipping on a banana peel.
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I saw these four bighorn sheep just a half mile in from the parking lot:
Mill Creek Jumpoff in the distance:
Extremely rugged north face of Galena Peak:
About halfway up the headwall. My final route was straight up the center towards the break in the brush at the top:
View from on top of the headwall looking towards Galena Peak:
Looking back down at the Mill Creek Jumpoff. The brush behind the headwall is impenetrable. So you have to traverse the narrow edge along the top:
I saw three rocks with these orange crosses on the ridge up to Galena:
The rock here is as bad if not worst than the San Gabriels. Dangerous stuff.
Looking west down Mill Creek Canyon and Mill Creek. Baldy and the San Gabriels in the distance:
I did some recon of the south side of Gorgonio for people who want to hike Vivian Creek. Looks like no snow to me.