Rossland Range Update

Out with an AST 1 group. We experienced a few loud whumpf's. Upon inspection, our test pit showed propagation of the persistent weak layer down 56cm on surface hoar from mid-November, size 10-15mm sitting on a crust (2cm thick). Test Pit: 1910m, S aspect, 10 degree slope, HS 105cm CTM(RP)17,14 down 34 on SH size 3-5 (Dec 7?) CTH(SC)24,23 down 56 on SH size 10-15 (Nov 22) ECTP14(SC) down 56