EL 4729, which extends along the Mount Norwest Range located west-northwest of Leigh Creek for a distance of 50 to 75 km from there, and surrounds the location of the historic large Witchelina magnesite deposit, is being explored for possible other economic stratabound occurrences of that commodity. Recently, a total of * square km or ~% of the original licence area was relinquished as a condition of granting licence renewal for a fifth year. No work was done by Archer Exploration on the now relinquished peripheral westernmost portion of the licence.