We have been skiing around Campbell icefield chalet the last few days and have been sticking to low angle slopes in the alpine and tree skiing due to the uncertainty of the 23-12-01 SH down 60-70cm.
Digging around in a few locations (2000m SW, 2100m SW, 2300m N) we were able to find this layer well preserved SH 3-15mm.
Each extended column test produced no results, ECTX
A test pit at 2300m N, produced ECTX, DT 13 down 65 (deep tap test) and PST 37/100 End down 65 on SH 3-15mm (propagation saw test).