Boulder Mountain  
Condition Updates  
Route: East Slopes
Posted On: 2022-06-30, By: mtngoatwithstyle
Info: Summer conditions from the Baldwin Creek TH to FR 279 all the way up to the summit. The creek after you go up Baldwin Creek had water running and no way for me to cross it, so I took shoes off and crossed it. Nice way to wake up!. I did not summit short of 200ft due to dark and stormy clouds rolling in. Will be back!. 
Route: East Slopes
Posted On: 2022-06-06, By: Shooter
Info: Summer conditions as well as the ridge to Mount Mamma. This makes for a nice loop. 
5 2
Route: East Slopes
Posted On: 2021-06-19, By: mikemalick
Info: Modified East Slopes route. Parked right at entrance to closed 4WD road off 277. Also cut out a bunch of switchbacks and went right up the ridgeline when it made sense. No snow on route at all. 
Route: East Slopes
Posted On: 2020-11-02, By: Trotter
Info: Road is well packed until turnoff at 279 road. About 4-6 inches of snow until you hit the mine, either sugar powder or crusty with sugar under it. Fairly slow going, but traction or flotation won't do much. We semi trenched it. Above the mine, mostly windblown talus. 
Route: Mt Mamma
Posted On: 2020-10-12, By: angry
Info: Loop from Baldwin Gulch - Mt Mamma and ridge to Boulder summit is dry. However, it was snowing on the descent. No summit register. 
Route: East Slopes
Posted On: 2020-06-06, By: RobLowe
Info: W/ Mt Mamma. No snow up Boulder. Some snow on Mamma heading down Baldwin Gulch. Very windy but forecast is better for tomorrow. 
Route: East Slopes
Posted On: 2019-07-02, By: tjf242424
Info: Hiked from the 2wd parking at the bottom of the Antero road. Basically summer conditions. A few snowfields remain on the upper switchbacks, but no snow equipment necessary. I stuck to the switchbacks going up, with some short snow crossings, but chose to plunge step down some of the snowfields on the descent to eliminate switchbacks. Pretty cruiser day, less than 7 hours to complete. 
Route: East Slopes
Posted On: 2017-12-10, By: d_baker
Info: No summit, but..... Baldwin Gulch is in its usual "winter" time condition with ice flows and packed snow/ice starting at the bottom. An ATV type vehicle, possibly a rubber tracked machine (vs. wheels) went into Baldwin Gulch, but any truck will have a difficult time beyond CR 162. It took us about 40min's to reach the turnoff for the Boulder Mtn route. Following the route description on this site, using the second turnoff from Baldwin Gulch road, just after 279, we found a boot track that aided our hike tremendously. Without this ~2+ mile track, we would not have made it as far as we did. Snow was continuous from Baldwin Gulch rd turnoff, about 8" deep. At the end point of the prior hiker, we continued for roughly another mile, breaking trail in 10-12" of snow, in one windblown area it was shin to knee deep for a short stretch (I'm 6'). Due to poor choice in footwear (me, using summertime hikers vs. using a more appropriate insulated winter boot) and the decision to not bring snowshoes -- with cold feet (me) we made it to about 11,900' with limited time remaining for what we wanted out of our day, so we stopped for lunch then tucked tail for our descent. We tacked it up as a nice lunch with a view & a recon mission with good exercise. 
6 2
Route: Road 279 + NE ridge
Posted On: 2014-05-25, By: CarpeDM
Info: I hiked up Boulder Mtn yesterday in the southern Sawatch. Forgot snowshoes, which was a not problem most of the way. But it was brutal for the last nearly a mile and a half up to the mine. At 3.75 miles in, debris from a small avy blocked the road. But a party of jeepers made it over (one had stayed behind, presumably to save the day if they got stuck on the way down). Other than that, the road was pretty clear most of the way. Then, trapdoor postholing began about 5 miles in. Cutting up the ridge at the switchback at about 11,450 would've been the way to go, but it was still brutal bushwhacking through trapdoor snow on the way down - just shorter. Felt the affects of not being at elevation in 6 weeks, and was worried about getting caught up there in the storms, so didn't go to Mt Mamma. Pic 1: Avy debris at switchback at about 11k Pic 2: The postholing begins at about 5 miles in Pic 3: Antero + road Pic 4: Cronin ridge 

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