In the latter 1970s, the government changed its policies in regards to the Lacandon, establishing the Montes Azules Biosphere Reserve. It evicted some squatters, and granted the tiny group of Lacandones ownership of huge tracts in the reserve. That caused resentment in some indigenous communities, and would be a factor in the Zapatista uprising two decades later. However, even with the establishment of the reserve, the government did not sufficiently protect it, and many squatters made their way onto the lands, creating patchworks of squatter camps. Even today, there are only about twenty forest rangers for the entire reserve.