Triangulation Peak and Boca Cave Trail

MODERATE 146 reviews
#5 of 127 trails in

Triangulation Peak and Boca Cave Trail is a 4.6 mile moderately trafficked out and back trail located near Breitenbush, Oregon that offers the chance to see wildlife and is rated as moderate. The trail offers a number of activity options and is best used from June until October. Dogs are also able to use this trail but must be kept on leash.

DISTANCE
4.6 miles
ELEVATION GAIN
1,076 feet
ROUTE TYPE
Out & Back

dogs on leash

kid friendly

birding

camping

hiking

nature trips

trail running

walking

cave

forest

views

wildlife

muddy

rocky

snow

washed out

An easy hike with fantastic views of Mt. Jefferson and a little know gem of a cave that frames the mountain in the distance.

1 month ago

it was an amazing hike. fell down coming out of the cave.

hiking
1 month ago

Trail isn't too tough to get to super cool and unique scenery and views on the way to the cave.

1 month ago

Boca Cave is spectacular. When you get close to the top of Triangulation Peak, the trail splits. Right up to the summit and left to the cave. Path descends on rocky ground to cave but is doable. Rocky, wet scramble into cave. Don’t miss the framed view of Jefferson.

hiking
1 month ago

Foggy, narrow trail, and I couldn't locate the cave.

hiking
1 month ago

We hiked with our two dogs to the peak of the Triangulation Tr. to get the most beautiful 360 panoramic view! From there we hiked down into Boca Cave to see Mt Jefferson through the eye of the Cave. Photos do not do the view and experience justice.

1 month ago

Phenomenal! The peak is definitely worth it, and Boca Cave is easy to find and really cool. Hike up is a bit brushy, not to difficult.

hiking
2 months ago

Really easy summit hike and great to see both the cave and the peak at the top! Great camp spot up there too. NOTE: when going to the cave you will go through a burned forest area and the trail is relatively difficult to follow so keep your eyes peeled. It's a scramble with lots of loose rock, but doable if careful

hiking
2 months ago

Helpful Hints **
The directions off of here were wrong when I plugged it in. It took me to a gated off forest road. Just type in the trailhead on google and it'll take you to the right place.
The cave won't be hard to find if you know what to look for (I didn't, but eventually found it.) There's an obvious trail that y's off to the left by the summit. Follow that till you get to another viewpoint, and you'll see the burn area. Don't walk down into the burn. Walk along as close to the rock as you can and there's a small trail that dips to the left and goes down, and hooks left right along the cliff wall. The cave faces Jefferson on the cliff wall of the viewpoint you passed walking towards the burn. It's right underneath it really. kind of hard to explain, hope that helps.

hiking
2 months ago

GPS had us on the wrong road to a locked logging road. Definitely take 2233 approach to the trailhead. The gravel section was brief and not too bad. Gorgeous views at the top of triangulation peak! Boca cave was MASSIVE. Really enjoyed the burned out beauty. The approach to the cave could be pretty difficult for some. my poles came in handy. Highly recommend.

hiking
2 months ago

a basic forest trail that leads to beautiful views. definitely fire damage that was pretty in its own way. Boca cave was spectacular, and much bigger than expected. I think our mileage was about 4.6 miles.

2 months ago

Pretty steep most of the way up. Beautiful views of mount Jefferson at the top. Be aware there is a lot of damaged area from wildfires.

3 months ago

First of all, what the sh*t Nancy. Dropping a trail's rating just because you don't know how to Google or call a ranger station is BS. (Referencing the below review).

This is an awesome trail with excellent payoff for moderate work. There is a primitive campsite up there too, but no campfires especially right next to the burned area! Next time Im tempted to hike in my gear and stay the night! World class views of Hood, Three Fingered Jack and South Sister, and obviously Mt Jefferson taking point and center. The cave was an awesome added bonus, you must follow literally foot prints and somewhat of a trail downhill through the burned area after passing through the campsite. Be careful as its slippery. The trail all around was enough to feel accomplished but also easy enough to not feel ragged. I started around 430pm and was back to the car at 730pm after watching the sunset from the summit. Total distance on my pedo said just under 6 miles.

hiking
3 months ago

I would like to go but I do not see any roads to get there. How is this accessed?

hiking
4 months ago

This hike is great! Amazing views:) including the cave, the round trip was 6 miles.

4 months ago

Beautiful view, amazing sunset from the peak if you camp. Cave adds a nice side adventure and interesting walk through the burn.

hiking
4 months ago

This is an excellent hike with so many beautiful views. Make sure you fill out the paper in the little box at the trail head (northwest forest pass) and keeping your copy on you as you hike...we got stopped on the trail by someone with the forestry service that asked for it. You can be fined if you don’t. The hike was very dusty but so many different terrains and great views I didn’t care. I did bring extra water which was helpful. The cave was not super hard to find, you have to go downhill through the burnt forest and around to the left. Pretty much follow the foot prints. Also this app is amazing and if you open the map somewhere you have phone signal and leave it open you can use it even if you don’t have signal. It will show you as a blue dot and you can “follow the red line” to your destination. I’m surprised how many people use this app and don’t know that. So many photo opportunities it is a great hike. You will get your heart rate up a bit in some parts of this.

4 months ago

I loved this trip! Made it this weekend with my dog. People at the trailhead seem worried about finding the cave, but don’t fret! Is pretty easy to find, especially with other people there. First you should go up to the peak. Right before you get there, you’ll see a campsite to the left. That’s where the cave trail is. Keep going straight to the peak.

After that, head back to the Boca trail and follow that. There’s a patch of now burned forest going downhill. Go downhill. Some people tried to go straight and up, but that’s wrong. Follow the footprints down and to the left, you’ll encounter some jagged rocks, and the trail pretty much shows you the way from there.

4 months ago

Really beautiful up there yesterday! I’d go early because it can get a little busy and there isn’t a lot of room to pass hikers going the other way. Finding the cave can be a little tricky, but we had luck following the footprints in the dirt.

4 months ago

Awesome hike with beautiful views! It was clear today and you could see several other mountains in addition to Mt. Jefferson. The cave trail is close to the summit - easier to find on the way down. It’s not far, and there is a trail that veers off to the right coming from summit. A large rock in the middle of that trail marks ‘cave’ with an arrow. The cave itself is down through the burned area (but there’s a trail) and is kind of a scramble. Recommend taking poles for this part. There’s a rock formation at the top of the burned area and the cave is down below the opposite side of that formation. So worth the scramble!! It’s beautiful.

hiking
4 months ago

Beautiful hike, beautiful view!! Sad to see how much has been devastated from fires but AWESOME to see how much rebuilding is happening and the incredible work of NPS & volunteers. P.s- I could not find the cave even though some folks told me it was “so obvious.” Oh well, amazing nonetheless!

hiking
5 months ago

Absolutely beautiful! This hike was so fun! Even though it was super Smokey and I couldn’t see very far it didn’t matter. I love every part of this hike. Finding the cave was like finding and oasis in the desert..., a much appreciated cool reprieve from the heat. Beautiful views of Mt Jefferson. Perfect length and difficulty level. Just watch your feet on the rocks and roots during the first half or so. Easy drive to the trail. Some gravel road but doable in any car.

5 months ago

Great hike with incredible views. We went on a clear day we could see mount hood and the three sisters. It’s a bit steep at the end but totally worth it. The area where the cave was is completely burnt. However, still highly recommend!

5 months ago

This trail was not bad, however I felt the need to constantly watch my step during most sections to avoid rocks and tree roots. The hike isn’t strenuous until the switchbacks at the end and the rewarding views at the top make it all worth it. Bring more water than you think. The trail to Boca cave was very dusty and dirty due to the remnants of the fire. I had my 14 year old and 10 year old and the cave “trail” gave me some mom anxiety. Haha. It’s very steep and slippery. Coming out of the cave was wet and very steep for the first section. I recommend traction shoes. We were all very dirty at the end, but what an amazing view!

hiking
5 months ago

This is a great hike with amazing views of Mt. Jefferson and other cascade mountains. It isn't usually packed with people, which is nice. The forest is beautiful and you get a treat at the top with plenty of private spaces to sit and view. If one was inclined, there is plenty of tent space at the top too. Since the burn, we didn't hike down to the cave this trip. It is a sad site to look out on all the burned up forest, but beautiful all the same. This hike is a good workout, but easy enough for anyone in decent shape.

hiking
5 months ago

Made it up in 45 minutes just in time for sunset! Beautiful hike, views and setting!

5 months ago

Another one of my favorites I've discovered after moving here a couple of months ago. Good hike with moderate incline and light traffic. long drive up the side road to get there but well worth it. would do again

5 months ago

Great hike! Got there around 11:30 and there was still parking on a Sunday. Made the mistake of branching off too early in hopes to find the cave (wait until you’re practically on the peak) but that turned into a nice rock climbing trip! Trail to the cave is very dusty from the fires and the trees radiate some heat still. Saw only about 5 people the entire time. Would recommend

hiking
5 months ago

Great Hike with spectacular views. Cave is tricky to find. You’ll need to go up to your left about 0.1 mile before reaching the trail peak.(we actually found it on the way back down which would be on your right). A rock with “cave” and and arrow points the way from the trail (see photos added to this site). Hike up about 200 feet, head toward the right where you will see the burned out forest. Cave is down and around burned out area..(around to the left) Dusty, ashy hike but very worth it!

5 months ago

Trail incline increased noticeably over the last portion of the path but what a wonderful view at the end! Path to the cave is through an old burn. Had to follow footprints in the ash/dust. We didn’t have any trouble but I can imagine if you were the first one after a rain It might be hard. The framed view from the cave is very unique.

5 months ago

So I tried to find the cave but was unsuccessful, when I took the right path (triangulation peak) it dead ends to the peak, where do I go from here?

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