Parking Lot Poser, prevention. Those are just trail tanks, and the forest service will just wreck them. Hopefully, a few Apex riders will come along and help them get it unstuck. Had to do that, couldn't help myself, I'll go stand in the corner now.
Those are not 120's, They are M109 Howitzers with 155mm guns. They seem a little bit of an overkill for avalanche control. The hours it would take to train people seems pretty absurd as well..........leave it to the forest service.