The Town through its Board of Selectmen or Board of School Directors, or both, may enter into any agreement with the United States of America or in the State of Vermont, or both, or with any subdivision, department, agency, or activity of the United States of America or the State of Vermont, or both to make public improvements within said Town, or upon property or rights of said Town outside its corporate limits, whether owned by said Town as sole owner or owned by said Town in common with another municipality or other municipalities, and may make appropriations consistent with this charter to accomplish such purpose.