That new 336-meter pit (open to the surface) in Quer�taro was found by cavers from the IPN group in Mexico City. They mapped it first and measured the depth at 337 meters by measuring the rope. Their map, reprinted from the proceedings of the 7th Mexican National Caving Conference in Monterrey in February, appears in "Mexico News" in the new AMCS Activities Newsletter 28. It is impressive that the original crude depth figure differs by only 1 meter from the value gotten by the team of American and Mexican cavers who made an improved map recently. -- Bill Mixon
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