Ranger Bruce Rowe said Tuesday that a contractor could start a conductivity study as early as next week to begin searching for possible abnormalities in the 43-acre sand dune called Mount Baldy. In order to determine an exact cause, ground penetrating radar will then be used.
Rowe also says the dune near Michigan City will remain closed until officials are sure that the area is completely safe for people to attend after the July 12 collapse.
Woessner of Sterling, Ill., was discharged Friday from a Chicago children's hospital after a stay there for rehabilitative care.
