Mosquito Peak  
Condition Updates  
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2020-12-05, By: jbealer
Info: 4wd road was snow covered in places but we were able to drive to the parking spots in front of the true off road part of mosquito pass. We took the summer trail up to Tweto wearing spikes, left ice axes and snowshoes in the car. We were passed by some guys later on that broke the rest of the trail, thanks! We followed their tracks and cut up tweto before the gully/saddle section. It was steep, deep snow in stops with loose rocks, 2 of us had poles, 1 nothing, she wished she had her axe with her for support. Those guys headed to Arkansas and we didn't see them again. We continued on to treasurevault, mosquito and kuss, making a loop. The ridge was a mix of rock and deep snow patches that were not supportive. We discussed if snow shoes would have helped and decided based on the bare sections we would have been putting them on and off all day or scraping them on the rock. We suffered with the postholing. Spikes stayed on all day, could have used the axe on a few snow fields. The descent off Kuss held some of the deepest snow all day, be careful of the hiding rock, mosquito Pass Road off Kuss was covered in more snow then expected, we stuck to the outside edge where it was less deep. Overall not bad for Dec, lacking snow for sure, but enough to make everything extra work. Get it while you can! 
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Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2020-11-01, By: habaceeba
Info: Went up the Mosquito drainage first so Treasure, Mosquito, Kuss. A little snow, but super shallow and mostly avoidable. I would recommend gaiters, but spikes aren't necessary. I was wishing I packed the spikes for a few short sections up the steep N face of Mosquito, but it wasn't a deal breaker. This route will definitely be different after the next storm. Big thanks to the jeep that went up Mosquito Pass road. It made the shady north side under the shadow of London Mountain a breeze. My knees say thanks too. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2020-09-19, By: montanahiker
Info: Back to summer conditions. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2020-07-03, By: wildlobo71
Info: Road is clear to the London Mine TH; it's got some depth of running water in places and is more suited for a good 4WD vehicle with clearance. Hiked London Mountain to the saddle of Tweto/Treasurevault before weather came in. Entire loop is clear of snow on trail - lots of good cornices remain and some snowfields but the exit basin between Tweto and Treasurevault is clean of snow, but wet. Enjoy! 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2020-04-27, By: bludwig
Info: We did London, Kuss, and Mosquito. Road to trailhead is clear until right passed the 4WD turn, about 2 miles from the trailhead. Even with this warm week ahead, it'll be a while before that drift melts out. Snow was pretty compact, even in the afternoon so snowshoes were not super helpful, spent most of the day using crampons. Treasurevault was also clear but we turned back at the saddle due to weather. Overall, not bad and I'm sure more will melt out this week. Picture 1: London Mountain Picture 2: Mosquito Peak from Mosquito/Kuss saddle Picture 3: Kuss from London/Kuss saddle 
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Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2020-01-25, By: osprey
Info: I parked where the Mosquito Pass road becomes 4wheel. I used snowshoes for the entire round trip. The lower part of the road is mostly hard packed. It becomes deep near the turnoff to the North London Mine. The road up to the Kuss London saddle is very deep with drifts. From the saddle to the summit is a mixture of hard pack and drifted snow. It was windy and lightly snowing all day with limited visibility many times. It took 6 hours to reach Mosquito summit and 3 hours to descend. I did not go further than the Mosquito summit. The wind had completely filled my ascent trench and so I enjoyed establishing a descent trench which has already been obliterated. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2020-01-05, By: WildWanderer
Info: Cornices are forming on ridges. I stayed to the left of the cornice and had no difficulty descending or ascending. I wore snowshoes the entire way, sticking to the ridge. 
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Route: Via Mosquito Pass from Leadville
Posted On: 2020-01-04, By: LetsGoMets
Info: Road to Mosquito Pass is plowed to 11,000 and then had ski resort grade corduroy to 12,000ish. From there it was mostly following the road/trail with some post-holing occasionally but mostly firm to the pass. Avoid the first switchback on the road proper after the grating (it's on maps) that swings on the the SE face around 12,400, it's holding snow and steep enough to be dangerous. Pass to Kuss/Repeater is mostly road, and rock hopping with drifts and snow. Mosquito is mostly rock hopping until the last 100 vertical feet or so. Was going to tack on Evans on my way back but the wind picked up quick and hard after a mostly calm-ish morning. Brought traction, didn't use it. Flotation could be helpful in places but I'm a glutton for leg punishment. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2019-10-01, By: supranihilest
Info: This hulking peak is easier than it looks, though the rock is extremely loose. From Kuss Peak descend north down talus to an old road. The road does not lead to the summit. You can either take the entire ridge or follow the road for just a hair until it starts curving northwest. From this point you should turn northeast and head up steep loose dirt/talus to the ridge crest. It's the same vert just less horizontal on loose junk. There are trail segments but you'll probably just be weaving around in the talus trying to find whatever is the least loose. There are no false summits, thankfully. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2019-08-05, By: E_A_Marcus_949
Info: Looped it with Tweto - started with Tweto then Treasurevault -> Mosquito -> Kuss then back down. Some snow fields on Treasurevault's ride from Tweto, but they are entirely avoidable. Snow on edge of Kuss but no need to get anywhere close to that cornice. Full summer conditions everywhere else - not necessary to cross any snowfields. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2019-07-28, By: flagship47
Info: Mosquito Pass is still closed. Road is clear to TH which is at 11560'. There is a decent sized snowbank about 3/4 up further on 4x4 portion of Mosquito Pass Road that has a few spots where it appears some attempted to drive through the snowbank but failed. Summer conditions on loop, ridges clear of snow but still have some snow melt on the road to the east of Tweto and a bit on Mosquito Pass Road. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2019-07-15, By: HikerGuy
Info: Did the loop counterclockwise starting with Tweto. Essentially summer conditions, no gear needed. Any snow to be crossed was either very short or flat and all of it was supportive. Meltwater is running down most of the mining roads. It might be until August before Mosquito Pass opens up, a large snowfield covers the road by the North London Mine. 
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Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2019-01-20, By: cottonmountaineering
Info: The east side of the mosquito range had a lot of wind during the last storm cycle, leaving a lot of areas bare, and others loaded. Snow was drifted/unconsolidated to just above treeline, then a mix of hard snow/crud. Saw a couple avy debris fields near planned route so decided to turn around at about 12,5. 
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Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2017-10-16, By: 12ersRule
Info: Traction nice to have, not required yet. No snowshoes necessary. Drove all the way to summer TH....dry all the way to TH still. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2016-08-13, By: jasayrevt
Info: Clear and very nice enjoyable trip w/ reaching summits. Great, beautiful 13er mountains. This quality, classic route is a unique undertaking and lightly traveled. Prime, excellent, and bluebird summer conditions up high for navigating slopes and ridge line extremely well. Trail runners and light pack were good. Climb safely / swiftly in the hills folks. Pictures included as beta 
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Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2016-07-05, By: jlarocco
Info: Did the loop along with London and Tweto. The road has flowing water most of the way up to the London/Kuss saddle, but it's easily avoided. Route is completely snow free except one small patch along the road above the mine - some 4x4s have driven through it, though, and you can walk through the tire tracks. From a distance, the ridge up Mosquito looks like there's a patch to cross, but when you get there it ends up you can easily walk rock to rock and avoid it. 
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Route: from Mosquito Pass
Posted On: 2016-03-05, By: screeman57
Info: Mosquito Pass is currently accessible from the Leadville side. Groomed from the winter closure to the plateau before the first switchback (12,400). Patchy snow beyond that, with 2 large snowslopes that are easily avoidable. Once at the pass, the ridge is completely windblown in both directions. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2015-06-28, By: Greenhouseguy
Info: Snow was not avoidable, but there was only one section that required much caution. 
 
Route: Loop: Kuss > Mosquito > Treasurevault
Posted On: 2015-06-21, By: EatinHardtack
Info: Skied Mosquito Pk this am. Photos show the conditions 
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