evidence: The United States claim was made on 22 November 1869 by James W. Jennett[15] under the provisions of the Guano Islands Act.[16] Most claims made by the U.S. over the guano islands in this region were officially renounced in a treaty with Colombia, dated September 1972.[17] But whether or not Bajo Nuevo Bank was included in the agreement is disputed, as the bank is not mentioned specifically by name within the treaty, and Article 7 of the treaty states that matters not specifically mentioned in the treaty are not subject to its terms. The U.S. administers the bank as an unorganized, unincorporated United States territory.[16][18] [...] - ↑ (Spanish) Treaty of exchange between Colombia and the United States, 1972 - ↑ Lua error in package.lua at line 80: module 'strict' not found. Page 39 states that U.S. sovereignty over Bajo Nuevo is disputed. "Currently, the United States conducts maritime law enforcement operations in and around Serranilla Bank and Bajo Nuevo consistent with U.S. sovereignty claims." This is the only archived document from this source that mentions Bajo Nuevo Bank as an insular area.