I WAS BACKPACKING IN THE RAWAH WILDERNESS, COLORADO IN THE 1970'S. HARD HIKE INTO OLD MAN LAKE. WE HEARD A PLANE, CUT IT'S ENGINE, WENT INTO STEEP DESCENT AND DROPPED STUFF INTO THE MIDDLE OF THE LAKE. MUCH DISCUSSION FOLLOWED WITH THE CONCLUSION BEING THAT IT WAS THE ONLY WAY TO STOCK FISH IN THAT LAKE.