Acre is one of the the 26 states of Brazil.
It occupies an area of 152,581.4 sq km, being slightly smaller than Tunisia.
Its capital is the city of Rio Branco. Other important places include: Cruzeiro do Sul, Feijó, Sena Madureira, Senador Guiomard and Tarauacá.
Its population is around 730,000.
For more details see http://en.wikipedia.org/wiki/Acre_(state)