Pfeifferhorn (via Red Pine Lakes Trail) is a 9.1 mile moderately trafficked out and back trail located near Sandy, Utah that features a lake and is only recommended for very experienced adventurers. The trail is primarily used for hiking and camping and is best used from May until September.
This trail leads to one of the most scenic and most frequently visited peaks on the south side of Little Cottonwood canyon. By frequently visited I mean that you will probably not see more than one group of hikers on the upper portion of the trail on a summer weekend. There are several good guidebooks that describe the hike in great detail. The majority of the hike is on a well-maintained and easy to follow trail. The portion of trail between Lower Red Pine Lake and the Alpine Ridge is only slightly difficult to follow, but the direction of travel is obvious and should keep you near the correct path. Above Upper Red Pine lake follow the faint steep ridge that leads to the Alpine Ridge. There is a trail, but it is faint and hard to follow. Once you've obtained the Alpine Ridge the rest of path to the summit is strait-forward.
Moderate to Lower Red Pine lake. After that starts to get rapidly steep. Went yesterday and there was a fair amount of snow leading up to the saddle. Still doable in good hiking boots.
Very steep but very gorgeous!
Great hike. Views are incredible and the final push to the summit is one you will never forget. Take lots of water and power food for energy. This trail is packed at first with many hikers going to Red Pine Lake. After that make sure you follow trail to avoid extra mileage and ridge bouldering. Be careful near the bell as the ridge bouldering is hikers choice. Polls are helpful for the first part and for the way down but got in the way as the hike increase in elevation and difficulty near the top.
Hiked it today. Was beautiful weather and it has been so dry that the trail leading up to Red Pine Lake did not have as much water in spots as usual, so my feet stayed dry. I lost the trail from time to time between Red Pine Lake and the Alpine Ridge, both going up and coming down, but managed to keep going roughly in the right direction, The climb up to the ridge was very very steep and required both hands at times. The narrow rocky section before the peak was as challenging as others have said. The last 400' to the top was verry very steep and also required both hands at times. Views from the top were the best I have experienced in the Wasatch and I am glad to have made it up and down safely. Roundtrip for me was 7 1/4 hours including breaks.
Been wanting to do this one for awhile. This is a great hike with a nice scramble. It's long and steep in places and not always marked well- but worth the effort! The lakes break it up nicely.
The Knife Edge is the coolest Ridgeline second to Angels Landing
The views are beyond spectacular and you may encounter some mountain goats along the way. We passed a few people along the lower portion up to Red Pine, but after that we only encountered one other group.
Awesome hike the summit is one of the best Ive been to in Utah. By the way if anyone sees a Gopro on a small tripod on the ridgeline about half a mile before the ascent up to the Pfefferhorn that would be awesome if you could contact me at firstname.lastname@example.org. We got caught in a storm and got down as fast as we can and forgot the camera. Thanks!
Tougher than I originally thought but so worth it. Great trail and fun summit. Would recommend to anyone.
Best hike in Utah!
so pretty. be prepared for a little technical bouldering across the saddle at the top. Bring tons of water. and the last quarter of a mile or so is straight uphill which is a little rough. Incredibly beautiful and absolutely worth it.
Incredible trail with much variety including technical bouldering and scrambling. Gorgeous views. The mosquitos were plentiful in the morning but sparse in the afternoon. Repellent is a must.