The fourth round of the SIBL took place on 12 December at The Castle Climbing Centre in London, with a record number of competitors turning out to try their luck at the 20 set problems. This round saw over 160

As previously reported on , renowned ice climber Guy Lacelle was killed in an avalanche late last week.In this video Doug Chabot of the Gallatin National Forest Avalanche Centre investigates that avalanche and the snow conditions of the gully where