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POCKET GOPHERS: Locate fan-shaped mounds with signs of recent activity. Find horseshoe-shaped depression on one side of the mound. To locate the main runway probe ground 40-50 cm (16-20 inches) from the mound on the same side as the depression. The main runway has been located when ground friction on the probe has been released
Dig down to the main runway, taking care not to block it off with earth.
Create an opening large enough for easy insertion of the Cartridge.
Collect enough earth and other material to close the opening.
Light fuse and insert fuse-end first. Cover opening immediately, taking care not to smother the Cartridge with loose earth.'
Cover any opening where gas escapes.
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