The Indian Lakes Golf Course and other parts of the Enoch reserve outside Edmonton, Alberta, are to be searched this spring, The Edmonton Journal reported. Several practice bombs were discovered in 2006 when the golf course was under construction.

Austin Baird of Defense Construction Canada said the practice bombs could still cause serious injury. They had charges that emitted smoke during the day or flashes for night drops.

Pilots who participated in the British Commonwealth Air Training Program at City Center Airport in Edmonton also dropped larger bombs weighing from 50 pounds to 500 pounds. Baird says any unexploded bombs buried in the area would not be dangerous unless someone digs them up.

An air survey last year using a sensor-equipped helicopter turned up 200 pieces of metal that could not be accounted for. Workers will dig excavate each one up to determine if it is a bomb.

Anything buried more than three feet deep will be left in place.