Recognized members of the Minnesota Chippewa Tribe shall not be denied the privilege of traversing the area included within the Grand Portage National Monument for the purposes of logging their land, fishing, or boating, or as a means of access to their homes, businesses, or other areas of use and they shall have the right to traverse such area in pursuit of their traditional rights to hunt and trap outside the monument: Provided, That, in order to preserve and interpret the historic features and attractions within the monument, the Secretary may prescribe reasonable regulations under which the monument may be traversed.