[2] After the dissolution of the Spanish Commission of Territorial Limits by order of the Crown in 1760, Iturriaga and Solano returned to Spain and presented to the Court a series of proposals to ensure Spanish control over their possessions of Orinoco and Río Negro.

On March 17, 1767, Diez de la Fuente arrived in Esmeralda accompanied by 60 Spaniards and the caciques Wadena and Wasaha, who led a group of 3,000 natives.

The municipality is recognized as a territorial division by the government of Antonio Guzmán Blanco on December 10, 1880, of what is now the Amazonas State.

[4] The mayor of the Alto Orinoco Municipality is Jaime Turon, re-elected on October 31, 2004, with 40% of the vote.

[5][6] The municipality is divided into five parishes: Capital Alto Orinoco, Huachamacare, Marawaka, Mavaca, and Sierra Parima.