MICHIGAN CITY, Ind. (AP) _ A hole similar to the one that trapped a 6-year-old boy under 11 feet of sand has been found on the same northern Indiana dune.
 
  The National Park Service says a crew using ground-sensing equipment to examine Mount Baldy at the Indiana Dunes National Lakeshore found a 10-inch wide hole resembling the size and shape of the hole described by the boy's family. 
 
  Park Service officials say the hole appears to be about 5-feet deep, but might be deeper. More equipment is being brought in to collect sand from various depths for analysis by geologists and hydrologists.
 
  Emergency workers freed Nathan Woessner, of Sterling, Ill., after he disappeared under the sand for more than three hours July 12. He was hospitalized for two weeks but is now home.