After skipping a planned hike due to illness (and some less-than-ideal weather) we got back on track with a trip to the Diamond Peak Wilderness. The plan for the day was to start by taking the Vivian Lake Trail to Vivian Lake in the wilderness then hike the nearby Hemlock Butte Trail up to a former lookout site followed by a second stop to visit Pool Creek Falls. We began at the Vivian Lake Trailhead following the Vivian Lake Trail past an empty wilderness registration box and gaining some views of Diamond Peak.



The trail climbed gradually for 0.6-miles to a junction with the Diamond Peak Tie Trail. We had been at this junction before when we backpacked around Diamond Peak (post).

Along the way we entered the wilderness area.



We continued on the Vivian Lake Trail arriving at Notch Lake after another quarter mile.


We continued beyond Notch Lake arriving at the Mt. Yoran Trail junction after another 0.2-miles.




During our loop around Diamond Peak we’d turned onto the Mt. Yoran Trail here, but today we stuck to the Vivian Lake Trail which spent the next 1.2-miles climbing to a saddle. At times the trail was nearly level while at other times it launched steeply uphill. While it was too late in the year for flowers there were numerous colorful mushrooms and fungi along the way.

It looks to have been a good year for beargrass.




The trail was well maintained with only one small log across the entire route to Vivian Lake.


Another level section.
Pond along the trail.
The saddle at the high point of the trail.
After catching our breath at the saddle we began the mile and a half descent to Vivian Lake. The first two tenths of a mile the trail dropped steeply downhill to a shelf where it leveled out as it passed a pair of unnamed lakes.
Maiden Peak (post) across Highway 58 through the trees.



We passed the smaller of the two lakes a half mile below the saddle.
The second lake, which was just 100 yards from the first, was much larger.
Mt. Yoran from the lake.
Ridge above the lakes.

A tenth of a mile from the lakes the trail began another steep descent along a trickling creek before leveling out next to a marsh.
Just before beginning the descent the trail passed South of a third small pond/lake that was visible through the trees.
Heading down to the creek.


The marsh
Mt Yoran from the marsh. While it looks like a meadow, Fall Creek flows through here, and at times we could see water out in the grass.
Just 0.2-miles beyond the marsh we arrived at a junction with a spur trail to Vivian Lake.


We’d been to this junction before as well, in 2013 we had visited the lake as part of our Salt Creek Falls Hike (post). We turned left onto the spur trail and followed it a short distance to the lake.



We were able to use these rocks to hop across this narrow channel to the North shore of the lake where we were able to get a view of Mt. Yoran.



After exploring part of the northern shore I headed back across the channel and followed the trail around the South side of the lake until it petered out near a peninsula.





While I was exploring Heather was admiring the changing leaves.




When we headed back we took a brief off-trail detour from the Vivian Lake Trail to Fall Creek which we could hear from the junction with the spur trail.

After returning to the trail we headed back the way we’d come. The climb to the saddle was as steep as we’d expected so a rest was warranted prior to dropping down to Notch Lake where we stopped to watch several ducks enjoying the warm Autumn day.
Varied thrush. These continue to be the most frustrating frequently seen bird to try and photograph.



I believe these were ring-necked ducks.
Beyond Notch Lake we finally ran into some other people. We passed a single hiker on the far end of the lake and a group of six near the wilderness boundary. Those were the only people we would see on the trails all day.

Diamond Peak from the trail on the way back.
When we made it back to the trailhead we had the choice of getting in our car and driving a tenth of a mile back up Forest Road 23 to the Hemlock Butte Trail or walk there. We opted to walk and hiked past our car and up the road to the well signed trail.


The Hemlock Butte Trail is just a half mile long but gains 500′ to the site of a former fire lookout. While it was well signed, this trail was not anywhere near as well maintained as the Vivian Lake Trail had been. A number of downed trees combined with overgrown sections and some poor tread made the short climb an adventure.
Not all of the blowdown was as easy as this log to get over/under.

Multiple switchbacks kept the lower portion of the climb from feeling too steep.

The Hemlock Butte Trail succumbing to the vegetation.
The summit of Hemlock Butte is a rocky outcrop which required a fair amount of scrambling over the final 250′ to reach the small flat summit where the lookout once stood.

An obvious spur trail at the base of the rock outcrop leads to a view of Mt. Yoran and Diamond Peak. For those not comfortable with the scramble this is a good goal.
The trail to the summit at the junction with the spur.
Scrambling up
Mt. Yoran and Diamond Peak from the summit.
Wolf Mountain to the NW with clouds covering the Willamette Valley in the distance.
The view South.
Looking down from the summit. (The trail is to the right.)
Heather opted to stick to the spur trail viewpoint so after I’d taken in the view I headed back down. We decided that I would go ahead and bring the car up to the Hemlock Trail to pick her up. My hike here came in at 10.4 miles with approximately 2000′ of cumulative elevation gain.

After picking up Heather we headed for Pool Creek Falls which was located back off of Forest Road 23. The driving directions had been plugged into my phone but at some point during the first hike the route was lost and without signal we couldn’t use the phones to relocate Pool Creek. We had made note of it when we’d passed by that morning though so we started back trying to picture what the area/road had looked like because the creek was not visible from the road. Now the first 15.7 miles this road is paved (save for one very short gravel section) before turning to good gravel for the final 3.7 miles to the Vivian Lake Trailhead and we were both fairly certain that we had been on the gravel section when we’d passed by (wrong) so when we reached pavement we pulled over and used the GPS unit. We found Pool Creek on that map and confirmed that it was still about 2 miles away. We parked along the shoulder of FR23 across from the partially hidden sign announcing the trail.
The “trailhead” was just under 14 miles from Highway 58 or just over 5.5 miles from the Vivian Lake Trailhead.
The trail sign on the right. The Pool Creek Trail #4228 shows up on the Forest Service map, but they don’t have a dedicated webpage for it. We were made aware of the trail by following Hike Oregon, a good resource both online and through several guidebooks.
We had a little trouble getting started as the Forest Service and GPS maps both showed the trail following the right (East) side of the creek for a short distance before crossing over and initially there was obvious tread heading in that direction. The canyon quickly narrowed though, and we came to a large log that would have to be the trail in order for us to proceed any further but it was obvious that it wasn’t really the trail.

What looks like it might be tread ahead is actually the log.
Looking across at the other side of the creek the canyon wall seemed too vertical to be supporting a trail but we weren’t going any further on this side, so we backtracked to what looked like a faint path we had passed near the beginning. We had taken it to be a use trail down to the creek but now that we looked closer, we could make out a trail covered in leaves switchbacking up on the far side.
The Pool Creek Trail to the left of the creek. Here you can see the first switchback turning steeply uphill.
The makeshift creek crossing.
At the third switchback.
The trail was in reasonably good shape with a couple of larger logs to navigate. A little research showed that the Cascade Volunteers have this trail on their radar and had done some work on the trail in 2022.

The reason we hadn’t noticed the trail on the far side was because it climbed quite a bit in an initial series of short switchbacks so from where we had been the trail was already much higher than we’d expected it would be. In the photo Heather is coming up to the third switchback below.
These two trees are mentioned in the May 2022 trail update on the Cascade Volunteers webpage.
This one was high enough to easily pass under. On the far side are more cut logs.
Just under a half mile from the road we arrived below Pool Creek Falls.
First view of the falls from the trail.
Pool Creek Falls
After navigating a slightly slick crossing of the creek I followed a trail up to and behind the falls. We were happy to find that there was enough water flowing this time of year to get to see the falls, but it would be much more impressive in wetter seasons.






We spent some time at the waterfall then headed back to the car and drove home. It had been just under a mile with a little over 200′ of elevation gain for Pool Creek Falls. It had been an interesting day with wilderness lakes, a summit viewpoint, and a waterfall on trails in various conditions. One word of warning regarding FR23 – the paved section has some massive holes/dips and a number of sunken sections requiring alert driving. For once I had actually been looking forward to reaching the gravel portion of the road. Happy Trails!