Orosi is a district of the Paraíso canton, in the Cartago province of Costa Rica. Orosi is one of the oldest communities in Costa Rica. The village of Orosi was chosen, together with Ujarrás, by the Spanish conquerors to establish their first settlement in Costa Rica due to its water wealth and fertile land. Before the arrival of the Spanish in the sixteenth century, …Orosi is a district of the Paraíso canton, in the Cartago province of Costa Rica. Orosi is one of the oldest communities in Costa Rica. The village of Orosi was chosen, together with Ujarrás, by the Spanish conquerors to establish their first settlement in Costa Rica due to its water wealth and fertile land. Before the arrival of the Spanish in the sixteenth century, the Orosi Valley was inhabited by the indigenous Huetare, Cabecar and Viceita tribes.