Triangulation Peak Trail

MODERATE 38 reviews
#6 of 106 trails in

Triangulation Peak Trail is a 4.7 mile moderately trafficked out and back trail located near Idanha, OR that offers the chance to see wildlife and is rated as moderate. The trail offers a number of activity options and is accessible from June until October. Dogs are also able to use this trail but must be kept on leash.

4.7 miles 1200 feet Out & Back

dogs on leash

kid friendly

birding

camping

hiking

trail running

walking

cave

forest

views

wildlife

muddy

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.

hiking
24 days ago

Great hike phenomenal views. Once near top follow cairns and side trail to caves moderate intensity
Suggest stopping at Rosie's Mountain Coffee House on 22 (NE Santiam Blvd) before and/or after hike for coffee and sandwiches address;
647 NE Santiam Blvd
Mill City, OR 97360
United States

hiking
28 days ago

A bit hard to find the trailhead but well worth it in the end!

1 month ago

Get trail! The views are amazing. I will say though there wasn't much to look at until you got to the view point

1 month ago

Beautiful trail. Fairly easy too- until you hike down to the caves (which you should definitely do!!). It's very steep and slipper- but it's an incredible view and experience to be in the cave.

1 month ago

Fun hike and beautiful view when you get to the south side of the mountain. Kind of. boring for the first 2.25 miles then it is wonderful. Hard to find the path to Boca Cave so be on the look out.

2 months ago

awesome!!!

hiking
2 months ago

Beautiful views at the top. It is a little difficult to find the caves, best to print out directions to store in backpack.

hiking
2 months ago

Excellent out and back. There's a couple spots to camp near the peak. Get some good photos of the moonrise over Mt Jefferson. Couldn't find the trail to Boca Cave though.

hiking
3 months ago

hiking
4 months ago

The review with directions starting at McCoy Creek are the best directions. Incredible views at the top, didn't have enough daylight to find the cave but that's on the agenda for next time. Loads of wild huckleberry bushes along the trail. Very easy hike except the last half mile+ which is doable but a bit strenuous on a hot day. Lots of mosquitos and biting flies except at the top; mostly will leave you alone unless you stop moving.

hiking
4 months ago

The drive up was pretty gnarly but it's worth it -just don't turn down the wrong road. You won't have cell service up there. There's a parking area at the top near the beginning of the trail. The whole hike is awesome and pretty easy. The beginning is pretty level and full of pungent wild flowers and then you start winding up the mountain. I encountered more than a handful of downed trees on the trail, which were no big deal. Unfortunately I couldn't find the cave. I took the trail up to Triangulation Peak, but it looked like there was another trail. The end of the hike is the peak and the views are amazing. I was able to see some campsites from the peak- maybe this is where the other trail leads? I will definitely be back!

hiking
4 months ago

Great hike great view.

4 months ago

Awesome hike! gorgeous view of mount jefferson. If you come from 126, take the alternate route. the GPS tries to take you on NF 302 to get up to the trailhead but that road is not open to vehicles. instead drive past that road and take the next forest road which is nf2233 then turn right onto nf 650 which will take you to the trailhead.

5 months ago

hiking
5 months ago

A great hike! Enjoyed this trail and blooming wildflowers along the way. Views at the top were amazing and I felt like I could just reach out & grab Mt Jefferson. Steep down to the cave, but on this very hot day it was well worth the dampness & cool breeze inside the cave.

5 months ago

8 months ago

I loved this trail! I hiked it about 2 years ago but still think about it because the view at the end was just so pretty! There was no one on the trail except for me the day that I went, and I feel like this trail is usually like that since it is so far out there! Shorter, easy hike with great views and a cool cave to check out!

hiking
1 year ago

Super fun trail with some amazing views. Hiked it with 6 inches of snow, more at the top and the trail was well marked. I was amazed to see a few cars up there with the conditions. Saw an amazing sunset and hiked out in the dark.

1 year ago

Picked a beautiful November day to hike. Gorgeous view of mt. Jefferson! Don't forget to head down to the cave but be careful it is steep.

1 year ago