BMD Tamarack and pines

Doug a pit, snow pack was 190 cm Surface had a hoar layer and slight crust possibly for warm up the day before. Temp over night was -8°c Temp at time of test pit was -4°c Time 10am Clear sky's with light cloud cover Noticed 30 cm below the surface was a stiff layer which continued to bottom of the pit Top 30cm was 4 finger density Isolated column test went on 3rd above the shoulder slap on shovel Columm sheared off at the 30cm stiff layer as expected. Riding was ok stiff and crusty with a few powder pockets in leeward slopes. Good day