The areas of Ninu 1, Ninu 2 and María Inés exploration generated the concern of the agricultural communities of the UCO Valley before the progress of mining companies. The exploration areas are located in Valle de Uco, and were arrested by the neighbors of San Carlos, Tunuyán and Tupungato, which organized in Assemblies alerted these exploration sites, in 2008, and increased the provincial executive power (especially the secretariat of the environment) for not reporting these mining activities.
The UCO valley area was the first to reject metalliferous mining projects in Mendoza, since 2005. Creativity, The participation of the entire population and peaceful demonstrations characterized the actions of the autoconvocados of the Uco Valley. That is why the marches filled with allusive costumes are common; Explanatory detentions of vehicles in the route cuts; The use of symbolic actions with the aim of adding and not to separate. An example is when they installed piles or swimming pools in the middle of the national route 40, and the children in the area bathed and played in them. The route court was held at the beginning of 2008, and was promoted this time by the self-linked Tunuyan, who were alerted before certain mining activities in the Ninus and María Inés projects area. They participated in this court neighbors of San Carlos and Tupungato, as well as of the Great Mendoza. "Faced with the possible exploration in the department of Tunuyan, we care more, it was not only San Carlos".