Uncle Buds to 10th Mt Hut 12/19/2010
Posted: Tue Dec 21, 2010 9:49 pm
While we did not make the crossing, we did obtain some potentially useful snowpack info from the ridgetop about half a mile north of UBH where the "trail" drops into porcupine gulch. First of all, there is no discernable trail, and the blaze marks on the trees are hard to see after a snowfall. The trail crosses the ridgetop and bears NW across an open slope of increasing steepness for a 1/4 mile. We dug a snowpit at the southern margin of this slope. Incidentally, this slope is one of the two areas mentioned on the 10th Mt Website where avalanche activity has been documented.
Our pit showed a total snow depth of 3.5 ft. The top 13" were new wet powder resting on a weak granular layer of 1" thickness. Beneath the granular layer the pack was firm and well consolidated but rested on a 2" granular layer just above the ground. A snow column shear test confirmed that the failure point was at a depth of ~13". While in the area there were numerous cracks observed, and many instances of noisy snow Settling events. We did not attempt to cross this slope and did not observe any slide activity from our safe spot. That night another foot of wet powder fell at UBH so be careful.
Sorry if my details are fuzzy but Im not trained in this stuff.
Our pit showed a total snow depth of 3.5 ft. The top 13" were new wet powder resting on a weak granular layer of 1" thickness. Beneath the granular layer the pack was firm and well consolidated but rested on a 2" granular layer just above the ground. A snow column shear test confirmed that the failure point was at a depth of ~13". While in the area there were numerous cracks observed, and many instances of noisy snow Settling events. We did not attempt to cross this slope and did not observe any slide activity from our safe spot. That night another foot of wet powder fell at UBH so be careful.
Sorry if my details are fuzzy but Im not trained in this stuff.