Merging into Brazil’s Pantanal wetlands in the north and the Argentinian pampas in the south, and spilling over into Bolivia and Paraguay, the Gran Chaco is South America’s second-largest forest ecosystem. Less celebrated than its big sister, the Amazon, it is “disappearing in relative silence”, eaten up by cattle ranches and soya farms at a rate of a hectare a minute, according to some estimates. But last year, a new national park was born in its Argentinian section, says Mark Johanson in The Guardian, bringing 128,000 pristine hectares under government protection. Its name, El Impenetrable, reflects its extraordinary flora – “towering” cacti, “bushy bramble”, trees with spiky trunks. It also has diverse fauna and a rich indigenous culture, making a visit highly rewarding despite a paucity of tourist infrastructure.
The…