Howitzer gun causes avalanche to disperse build up of snow in Rockies. Denver, Colorado.
Unissued / Unused material.
Title - 'Guns shoot snow off Rockies'.
Colorado, United States of America (USA).
LS snow covered hillside. Various shots of snowplough at work. CU Howitzer gun being fired. MS snow covered hillside. Various good shots of avalanche.
Cataloguer's note: American commentary.