American billionaire Gilbert Butler has purchased some land he intends to hand over to the Argentine province of Entre Ríos and to the government of Uruguay for eco-tourism purposes, reported during the weekend. Last year Butler bought three islands on the Argentine side of the Uruguay River to be donated to the province of Entre Ríos to set up a Natural Park there. Now Butler announced the purchase of another three islands on the Uruguayan side to be handed over to national authorities for ecotourism and…