57 victims of this case, with a common shared title and to respect and implement in the course of what remains of the process of formalization of indigenous territorial property, it´s international obligations. 206. For the above reasons, the IACHR considers that the advances and achievements which have been made since October 2007 until present correspond to incipient reparation of the violations of Articles 21, 8 and 25 of the American Convention that were configured previously and were described in the preceding stages. The achievement of full reparation for these violations, and likewise access to the effective enjoyment of the right to territorial property by the indigenous communities of Lots 14 and 55, will be possible insofar as the State of Argentina guarantees, during the subsequent development and culmination of the process, respect for the parameters and guidelines provided by inter-American human rights law. D. The rights of the indigenous peoples of fiscal lots 55 and 14 with regard to the public works and natural resource exploration and exploitation activities within their ancestral territory 207. It has been proven that the authorities of the National and Provincial Government carried out, or planned the execution of, different public works in the ancestral territory of Fiscal Lots 55 and 14 during recent years, and granted a concession for the exploration of hydrocarbons, without having made prior consultations with the indigenous communities that inhabit this territory, which is pending formal allocation, and also without having carried out prior social and environmental impact assessments. These public works were: (a) The construction of the international bridge Misión La Paz – Pozo Hondo over the Pilcomayo River, which was started in 1995 and finalized without actually executing the other public and urbanization works that had been planned in its vicinity, which are currently paralyzed. (b) The works of improvement of a road that links Santa Victoria Este with La Paz, in July 2001. (c) The planning of works for the construction of Route 86, and the opening of a public tender process for that purpose, in 2000 and 2001. (d) The works of maintenance and broadening of Provincial Route No. 54, in 2005. (e) The conduction of a public tender and the grant of a concession for oil and gas exploration in the area affected by the claim, in 2001. Requirements of inter-American human rights law for carrying out public works and granting concessions in indigenous territories 208. Infrastructure or development mega‐projects, such as roads, canals, dams, ports and the like, as well as concessions for the exploration or exploitation of natural resources in ancestral territories, may affect indigenous populations with particularly serious consequences, given that they imperil their territories and the ecosystems within, for which reason they represent a danger to their survival as peoples, especially in cases where the ecological fragility of their territories coincides with demographic 191 weakness. For the above reasons, the organs of the inter-American protection system have linked the negative effects of development and investment plans and projects in indigenous or tribal territories, as well as those of concessions for the exploration and exploitation of natural resources, to multiple 191 IACHR, Third Report on the Human Rights Situation in Colombia. Doc. OEA/Ser.L/V/II.102, Doc. 9 rev. 1, 26 February 1999, Chapter IX, pars. 33-35.