West facing aspect at 10 minute trees above Blueberry Chutes. Rustchblock on 25 degree slope, failed R5 on 30 degree angle, not on specific layer. Weak layer 18" below surface from snow on 2/1-2/2. Penetrable but hard crust at 6', very hard layer at 7.5' depth caused probe refusal. Unknown but likely deeply buried weak layers from 6-7.5 feet below surface. Avoided terrain descending from Blueberry Chutes to Bagley Basin. Rode low angle slopes back to Heather Meadows on Cheap Date. Stay safe friends.