Busy day on Athabasca today.
The recent snowfall from the July 21-22 storm was present down to 2000m.
Melting back up slowly today. Snow Depths are 40-100cm at the firm line and bridges continue weakening. Plenty of snow remains above 2800m.
Walking on the lower glacier was very pleasant on 10cm new snow and breakable crust across the ramp route less pleasant with 15-20cm HST through out the Silverhorn rocks.
Half the Silverhorn east face had sluffed off as of yesterday evening and today around noon a healthy size 1-2 avalanche came over the ice bulge and over the traveled track.
No involvement as it happened between parties.
Also unclear if it was a natural from warming or a climber triggered wind slab as a party crested the top slope.
Another warm day will likely continue the shedding process but watch for isolated loaded slopes in steep glacier features.
Travel to Boundary Peak via the North bench route is still in very good condition.

Have a good summer everyone.
Erica Roles
Merrie-Beth Board