If the Province and Fortress are unable to agree upon the Depreciated Book Value of any Removable Improvement or Structural Improvement, the Net Realizable Value of any Removable Improvement, the Structural Improvement Value of any Structural Improvement or the fair market value of the Day Skier Facility or the Maintenance Facility, either party may refer such determination to arbitration by a single arbitrator in accordance with the provisions of the Arbitration Act of British Columbia.