Sawtooth Mountain Guide Avalanche Rec Level 1 Course field day on Tweener Ridge in the Galena Summit area. Dug a snow pit down to the ground at 8,300ft on a NE aspect with slope angle of 21 degrees at 1400. Height of snow was 158 cm and found the 12/11 persistent layer 150cm down. Performed a Compression Test and a Deep Tap Test with no fracture results (CTN and DTN). The facets at this layer were moist and were able to form a snow ball. Came across approximately 5 inches of snow from storm on Thursday 01/20/2022 afternoon and night. Minor wind transported snow from the NW. Wet Loose Avalanche was observed in the Boulder Mountains on a SW slope at 1530.