Mt. Tweto  
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2016-06-11  Route: Southwest Ridge
Posted On: 2016-06-11, By: mike14
Info: The road you hike up has a ton of melting snow and running water for the first half mile or so. After that there are some snow fields where we post-holed a few times up to our thighs, but not too many to warrant snow shoes. Some snow on the slope up, but easily avoided or traversed. Some avoidable snow toward the summit. All in all, pretty good shape. Definitely muddy and wet. Bring extra socks or wear waterproof boots. 
2015-06-27  Route: Southwest Ridge
Posted On: 2015-06-28, By: Ericds84
Info: Climbed Tweto from Mosquito Gulch on Saturday. Parked at the bend in the road. The snow can mostly be skirted on the ascent, but I was glad I had my ice axe with me so I could glissade down. It was very warm up there--snow is melting fast, and what‘s left is very soft. 
2012-11-23  Route: Southwest Ridge
Posted On: 2012-11-23, By: Eph 2 5
Info: Snow was not much of an issue. The Mosquito Pass Rd. was completely dry. I started near the point where the Mosquito Pass Road goes sharply off to the left and then turns south and goes up the first steep incline. I went north from the sharp left turn on the smaller 4WD road. There was some ice on the road in a few places, but was mostly avoidable. There was some snow in the upper basin below the saddle with Treasurevault, but I only postholed a couple dozen times. There was some snow on the SW ridge, but it was avoidable except for some narrow portions of the ridge. I carried snowshoes and microspikes, but never came close to using them. In addition, some of the peaks in the general area looked very dry. Pennsylvania Mtn. looked pretty dry above treeline. Hoosier Ridge and Red Mountain were completely dry from my vantage point on Highway 9. Silverheels looked pretty dry above treeline if you were approaching if from the south, although I couldn‘t see much of the lower part of that route because it was hidden by an intervening ridge. Quandary also appeared to be pretty dry above treeline except for a thin strip of snow that looked like it was near the main trail above treeline. North Star also looked very dry except for patches of snow along the long east/west ridge. 
2012-11-13  Route: Southwest Ridge / Southeast Face
Posted On: 2012-11-14, By: JosephG
Info: Road is passable for any vehicle all the way to the parking area at the Mosquito Pass junction. Sorry, Mosquito Pass itself is closed. After that, the 4WD road into the basin towards Buckskin and Tweto has 1-4" of snow with minimal drifting. The basin to Tweto’s ridge holds even less snow. The ridge itself has small pockets of snow in between the talus, but nothing to get excited about. Snowshoes completely unnecessary. Carried but did not even think of using microspikes. Generally speaking, the northern Tenmile and Gore ranges have a decent cover of snow. The southern area is fairly dry, including North Star, Quandary, Hoosier Ridge, Bross, and Lincoln. 
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2011-07-02  Route: FS Rd 856, SW ridge
Posted On: 2011-07-04, By: IHikeLikeAGirl
Info: Couldn‘t drive far up FS Rd 856 beyond Mosquito Pass Rd, before deep snow crossed the road. Deep and long snowfields remain in the basin. Most can be avoided by staying on the eastern side of the basin. Short snowfield just before the ridge, couldn‘t really be avoided (pic 1), but was melting fast. I ascended the middle of the basin and motored on up using micro spikes, my partner just kicked in. The ridge to the summit was basically snow free (pic 2). BEWARE: ~1/2 way up the basin, I ascended a snowfield that apparently made a snow bridge with a cliff band and I almost fell through. Ascended the solid snow with a 1-2 ft high, benign looking, line of rock across the top. Near the top, 2-3 ft from rock, my right leg punched through up to my hip. I tried to push myself up with my right hand, that too punched through. I looked down and saw my leg dangling in an airy void, with rock quite a ways below me. Not sure of the depth...10‘ maybe?...wasn‘t concerned with estimating at that time.... Fortunately, my left leg and hand stayed on top of the snow and I gingerly got my leg out of the hole and onto the rock. Tried peering down into the hole, but couldn‘t see the bottom from my vantage point (pic 3). Upon the descent. I, avoided the area, but saw at least 2 other sets of footprints heading up the same snowfield. :-o 

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