This primary source comes from the Records of the Environmental Protection Agency.
National Archives Identifier:
549518Full Citation: Looking Toward Canada On The Rainbow Bridge, Which Spans The Niagara River Just Below The Falls. Between The Flags Of The United States And Canada, The Flag Of The United Nations Marks The Internation; 7/1973; Records of the Environmental Protection Agency, Record Group 412. [Online Version, https://docsteach.org/documents/document/looking-toward-canada-on-the-rainbow-bridge-which-spans-the-niagara-river-just-below-the-falls-between-the-flags-of-the-united-states-and-canada-the-flag-of-the-united-nations-marks-the-international-, May 6, 2024]