Diamond Peak is the next major volcano south of the Three Sisters. Its summit sits at 8750’. Unlike most of its Cascade neighbors, Diamond Peak is a shield volcano. This type of volcano tends to build up a broad, flat profile over time compared to the much pointier stratovolcanos like Mt. Hood or Mt. Thielsen.
I took this picture of it from the north near Mt. Yoran:

Diamond Peak has a network of trails on all sides that make a loop possible. Depending on where a person starts, this loop could be done in just two or three days. I decided to approach the loop from the north on the PCT however, which added some miles and a couple days to my trip.
I car-camped at the Trapper Creek campground on Odell Lake the night before I hit the trail. The lake is about a three hour drive from Portland. I paid for my site for a week, and left my camp set up while I was out on the trail.
From my camp at Odell it was just a short walk to the rather strange Yoran Lake Trailhead, which is next to some railroad tracks…

Here’s a Google Map of the trailhead location:
https://www.google.com/maps/place/43%C2%B034’47.0%22N+122%C2%B002’32.0%22W/@43.579731,-122.0427632,124m/data=!3m2!1e3!4b1!4m5!3m4!1s0x0:0x0!8m2!3d43.57973!4d-122.042216?hl=en
Soon after is a narrow footbridge which might be difficult for dogs…

If you have a dog you can avoid the bridge entirely by starting here instead:
https://www.google.com/maps/place/43%C2%B035’12.6%22N+122%C2%B003’07.9%22W/@43.5868996,-122.0607294,15z/data=!4m5!3m4!1s0x0:0x0!8m2!3d43.58682!4d-122.0522?hl=en
Just hike up the old dirt road a short distance to Pengra Pass where you will pick up the PCT. That’s the way I returned. It’s a bit shorter anyway.
The hike in on the PCT was hot and dusty, but luckily the trail passed several small lakes which offered some much needed shade and water. Arrowhead was one of the lakes where I took a quick break and grabbed some water…

It was here that I met my first mosquito of the trip. There’d be many more in the days ahead. Even the dry west side of the mountain was surprisingly buggy for this late in the summer.
Eventually I began to get some views of Diamond Peak…

And after crossing a saddle my first view of rugged Mt. Yoran…

Then its impressive neighbor, South Mt. Yoran…

I camped at lovely Divide Lake my first night, and had the lake all to myself. It was perfectly calm here, and amazingly quiet. I always seem to forget how quiet a night can be away from civilization. It surprises me. To my delight there were very few skeeters here as well.
Mt. Yoran the next morning, with Divide Lake in the foreground…

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