 With support from TNC's Parks in Peril (PiP) program, the Fundación Amigos de la Naturaleza (FAN) took part in the management of the park's Southern Zone, with offices in Samaipata and Comarapa.In 1991, with its first significant grant, FAN formed a management committee, with headquarters in Buena Vista, with the CDF being officially in charge of the area's management.That same year, the park size was extended to 637,000 ha without prior consultation of the local population and disregarding legitimate private property rights, a move which triggered serious protests and resistance against the park.