MWSs of Shell natural gas plant in grasslands on eastern slopes of Rocky Mountains in background, shots of flare (1:05). MLS, MWS of sulphur pile on left side of plant under cloudy sky, PAN to MWS of plant, reverse shots (2:24). MLS of flare against dark cloudy sky (0:17). MLS of smoke coming out of towers and tanks, TILT UP to shot of flare, reverse shot (0:54).