Ralston Peak Ridgeline near Cup Lake SE aspect

Quick report

Group of 3 toured the ridgeline of Ralston peak from car park across from Phillips Park. Started ~8:45 am. Triggered wet loose avalanche on ski down at about 11 am on SE aspect of a noname peak off the Ralston ridgeline. For the ski down, first skier chose a steeper line (~40+ degree) around rocks and what we'd deem to be consequential terrain. First skier tiggered a wet loose slide on first turn above terrain trap, and skiied away from the slide path, which went straight down over consequential terrain. As a result, the two other skiiers skied above the slide and away from terrain trap area. No one was injured from incident.