Mt. Princeton  
Condition Updates  
Route: East Slopes
Posted On: 2021-04-09, By: Gueza
Info: Looking good! 
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Route: East Slopes
Posted On: 2021-04-04, By: longlevi823
Info: I was going for Mt. Princeton via NE ridge of Tigger Peak. The road up to the radio tower is mostly dry, a few stretches of snow/ice but on the way down started turning to mud, slush, and water. I was the only one headed to the top. Ran into a couple people on the way down who were only going to the radio tower. I turned around at the drainage approx. .59 miles past the radio tower. A slide had occurred sometime not too long ago (can't be exact).The foot tracks I was following cut to the left of the slide up the drainage to rejoin the trail but couldn't tell from the angle if they ever got there. Assuming so since they didn't turn around based on foot prints. A faint looking snowshoe track went over the slide, but decided to just get these two peaks a different day. From town the ridge up to Tigger and across to Princeton look fine though. 
Route: East Slopes
Posted On: 2021-03-07, By: codyli34
Info: Parked at the lower trailhead, saw tire tracks that didn't make it too far. The road up to the radio towers was fine doing without traction, but there were some points on the road beyond that where I felt microspikes were needed. The turnoff from the road to the actual trail came a bit earlier as to avoid avalanche terrain. Took the summer route instead of ascending Tigger and taking the ridge. There were a few stretches where microspikes made me feel a lot safer along the summer trail, but certainly was a bit risky. Made the bad choice of leaving poles and axes in the car because the mountain looked dry from the lot. From the looks of it, 16 people and two dogs ascended that day. 
Route: East Slopes
Posted On: 2021-03-07, By: askwjs
Info: Was a long day on Princeton. There were about a dozen people on the trail. Road below towers was mix of dry and ice patches. Donned spikes above towers to the summit and back. Final switchback on the road had some snow but had a good boot pack through it. We crossed separately to be on the safe side. Was considering going over Tigger but saw a group ahead of us on the summer trail. There was one gully that was a little sketchy but had a boot trail through it and was easily crossed, no real danger signs. Used axes to cross in the morning but was much more consolidated in the afternoon so poles were fine. Again, crossed separately to be safe. Beside that, was straightforward. Bluebird day with a slight breeze on the summit. 
4
Route: East Slopes
Posted On: 2021-03-05, By: WildWanderer
Info: Mt Princeton road was covered in a new layer of snow this morning, which filled in the old trench. The snow was melting fast on my decent, turning slushy. The deepest snow is on the road from the towers to treeline, some of it steep. Snowshoes weren't needed. I wore microspikes the entire time, but don't follow my tracks: From the road I took the summer route because it looked mostly dry, but after passing the third slide area the sections covered in snow got steeper and I decided to leave the trail and head for the ridge. I should have gone over Tigger first. The ridge is windblown. 
14
Route: East Slopes
Posted On: 2021-03-01, By: durkan
Info: Road is mixed dirt, ice, and snow (mostly the latter to) up to the towers. I had microspikes on from trailhead tot he saddle between Tigger and Princeton. After the towers, there is a slight trench put in place by at least 7 people that day. No snowshoes needed the entire day, we left them in the cars. Because of this, we took the road all the way up which put us in the old slide path zone, so we went across one at a time. Be cautious of this area. For the most part, we took the summer route up. 
Route: East Slopes
Posted On: 2021-03-01, By: 7Below
Info: Started from a dry 2wd TH. No snowshoes needed, just Microspikes. Trail very icy a lot of the way. Several prominent avy slide zones so come prepared with gear and knowledge. Mostly a long snowy talus scramble to the summit. 
5
Route: East Slopes
Posted On: 2021-02-22, By: daway8
Info: Shocked at how dry the route still is overall - I once hiked it in late October with significantly more snow than what's there now. As per the previous update, most of the typical avy zones are either bone dry or don't have anywhere near enough snow to slide. The one possible exception is the slide zone where an old avy path cuts over the switchbacks past the radio towers in 4 places. The bottom two don't have much snow but the top two spots (1st near 11,500ft) have more snow and signs of instability (very minor sluffs and mini-slides). With a little more loading that could be a significant problem. Beyond that there's just snow between the rocks such that you can typically step rock to rock w/o much problem. Went up Tigger to tag that peak but came down summer Princeton trail. Microspikes probably a good idea but I didn't bother to pull out till going down the 4WD road just to move faster over scattered ice patches. Photos uploaded in reverse order... 
12
Route: East Slopes
Posted On: 2021-02-21, By: sixlebsack
Info: Started at 8900' Easy walk up to towers via cat tracks. After towers, road became punchy in spots, nothing long enough to warrant flotation. Followed summer trail as avy risk was not there. That's when it got difficult. Random post holing above tree line was a bear. Rocks underneath were icy at times so always had to maintain 3 solid points of contact. Nature of the trail was such that flotation wasn't going to be helpful. Didn't spike up either all day. Perfect weather though..... Long day, but good day. 
4
Route: East Slopes
Posted On: 2021-02-02, By: timewarp01
Info: Perfect weather today, almost no wind until the summit itself. Wore snowshoes from the radio tower to Tigger's NE ridge. Went up and over Tigger on the way up, which was pretty dry although lots of loose boulders. Took the summer trail on the way down, which proved to be a mistake. There are three steep snow crossings, and while the first and third were so solid I had to cut steps, the second is very sketchy. There were old footsteps on the surface of the snowfield, but the snowpack has clearly deteriorated since that person went across. When I stepped out I immediately broke through a thin surface crust and postholed to the thigh in an underlying weak layer. It's an extremely steep field at least two feet deep, with plenty of weak snow hanging above it. I ended up backtracking and scrambling up and around the head of the snowfield, ~60 feet above the summer trail. If you plan on doing Princeton under these conditions I'd strongly recommend going over Tigger both ways. If you're determined to use the summer trail bring an ice axe and be careful. I don't think it's much of an avy risk, but you could definitely end up sliding a long way down if the snow doesn't hold. The last pic below shows the old footsteps on the suspect snow slope. 
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Route: East Slopes
Posted On: 2021-01-31, By: bmcqueen
Info: Took the summer trail the whole way yesterday. Way less snow than there was last month. Happy to have spikes and my ax for the last two gully crossings. Wore snowshoes from the radio towers to the ridge on the way up. 
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Route: East Slopes
Posted On: 2021-01-24, By: JasonCrane
Info: 2nd unsuccessfully summit attempt on Mt. Princeton in 4 days. Snow storm conditions on Sunday, although no wind! Reached 12,600 ft. before turning back due to accumulating snow & waning daylight. Most of the snow is on the CR322A roadside of the mountain & did not see any of the infamous avy slide areas below Tigger Peak, which is primarily rock hopping & fluffy snow. Sections of CR322A felt slabby all during ascent/descent. Note, Princeton had steady snow all day & into the night, so expect a significant amt. of accumulation into this week.. Be safe! Disclosure: No AIARE Certification here, so use your own judgment! 
Route: East Slopes
Posted On: 2021-01-23, By: JasonCrane
Info: Made it to ~11,700 ft. on a gorgeous day for hiking. CR 322 isn't plowed starting from the lower 2WD TH, however the 3+ miles road hike is heavily tracked by snowcats up to the 322A junction. Broke trail in varying snow depths from the communication towers up to the 2nd road switchback, before turning back due to a time constraint. Wore micros the whole way, but floatation would've been useful above the towers. As a caution, the 2 upper switchback sections of road were loaded with snow at steep angles. Circumventing these areas may be prudent, but I'm not an avy expert & use your own judgment. Unfortunately, did not get a view of the east face of Princeton above tree-line nor the publicized Tigger Peak avalanche terrain. 
5
Route: East Slopes
Posted On: 2021-01-16, By: Carl_Healy
Info: Summited Princeton on an unexpected bluebird day. Road from lower trailhead is actually somewhat packed by snowcats and tracked ATVs from those working up on the communication towers, less so beyond the towers (a couple almost ran into us on the way down) Didn't necessarily need traction below treeline though there were a couple places above treeline where traction may have been advisable. That being said there were also a lot of dry patches above treeline where you'd be taking your microspikes on rocks and dirt. Only used snowshoes to cut trench bypassing switchbacks from 11,000' to 11,680'. This to avoid potential avalanches on those steep east facing slopes, though didn't get a good look at those slopes to really see how loaded they were. Stashed our snowshoes there. Was initially planning to take the ridge to Tigger to avoid known avalanche terrain on the North facing gullies, however after seeing the gullies they were relatively dry and we decided to take the summer route. This route seemed fine save for one troublesome looking gully nearer to the switchbacks up to the Tigger-Princeton Saddle (maybe 25' across?). However it seemed pretty stable and there were plenty of boot tracks already through it (not to state the obvious that YOU could always be the one to eventually trigger it no matter how many have been through before), but nevertheless we traversed it one at a time to be safe. When trenching snow it had an annoying punch crust below treeline that we punched through on many occasions even with some pretty large snow shoes. Above treeline snow a lot harder in most places. 
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Route: East Slopes
Posted On: 2021-01-07, By: supranihilest
Info: The road is bootable to the radio towers. We wore snowshoes from that point until we were on the ridge below "Tigger", where things dried out considerably. We left our snowshoes here and continued on the standard trail up Princeton. There are two snow-filled gully crossings, both have giant trenches through them. The first simply doesn't have enough to snow to be a concern, and the second felt very stable. Still, we crossed one at a time just to be safe. The entire remainder of the peak is a mess of snowy talus and boulders and snowy trail/booter segments. Nothing difficult right now except picking the best line through it all. Microspikes quite useful above treeline. Flotation only needed for the road approach. Ice axe not needed. 
Route: Up & over Tigger, down summer trail
Posted On: 2021-01-05, By: HikesInGeologicTime
Info: Well-trenched and bootable until radio towers. From there to treeline, flotation could be nice, though we stubbornly stuck to postholing (edges of road were shallow in many places, however). Cut up to start of Tigger ridge just before summer trail split to minimize travel on hard snow. From ridge - Tigger - Princeton summit is a mix of thin snow/ice and rock; we were able to stick to rock enough that traction was unnecessary. Wind and something resembling warmth had worn down the snow in the gullies crossing the summer trail enough that we felt comfortable taking that way down. We crossed those one at a time to be on the safe side, but what snow was left was fairly compact. Obviously that could change after the next storm, though... 
Route: East Slopes
Posted On: 2020-12-31, By: bmcqueen
Info: Quite a bit of snow up there! The road was trenched to the radio towers, then we became the trenchers from there. Wore snowshoes until we were on Tigger's rockier ridge (still lots of snow with ample trap doors waiting to grab a knee). We went up and over Tigger both directions as the gullies the summer route crosses had enough snow to make them a bad place to be. Wore spikes from Tigger summit to Princeton summit. 
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Route: East Slopes
Posted On: 2020-11-25, By: Conor J
Info: There is currently about 6 inches of snow on the entire road up to the radio towers, making the hairpin turns extremely hard to navigate without 4WD or chains perhaps. There was a boot track up until the end of the road portion of the trail, which is now much more established. The trail becomes quite treacherous where it goes on the north side of Tigger Peak, as there are spots with deep snow in and around all of the talus. I stopped at around 12,500 and turned back. The next big storm will also most likely make this section of trail hazardous due to avalanche conditions. Unless things melt out a bit, be very cautious! 
Route: East Slopes
Posted On: 2020-11-22, By: tlgold1990
Info: 9.5 hrs round trip from radio towers. Can't drive pass radio towers, too much snow. A few icy spots driving up to the towers made it a little sketchy in the Ram 1500. Lots of snow, made some of the route finding difficult. Postholed only a few times. Trekking poles going up. Microspikes coming down. 
Route: East Slopes
Posted On: 2020-11-22, By: Alpinefroggy
Info: Road drivable to towers and not any farther. Snow is covering good portions of the trail and slick hard ice is abundant. Poles and micro spikes highly recommended. Trail also gets lost in the snow here and there. Overall a nice day on the mountain my party was one of only 2 others on the mountain . 

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