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 The department of San Martín is one of the twenty-four departments that, together with the constitutional province of Callao, make up the Republic of Peru, and it is also the seventh largest department. 1. SURFACE AREA AND GEOGRAPHICAL LOCATION.- The Department of San Martin occupies an area of 51,253.3 Km2, it is located in the northern - eastern part of the Peruvian territory; it borders with the departments of Loreto (East), Amazonas (North), La Libertad (West) and Huánuco (South). Furthermore, the region is located in the high jungle. 2. POLITICAL DIVISION.- The capital of the Department of San Martin is the city of Moyobamba, one of the oldest in eastern Peru, since its political creation dates back to July 7, 1857. It is politically divided into 10 provinces and 77 districts, and currently the cities of greatest economic importance are Tarapoto, Moyobamba, Rioja, Tocache and Juanjuí. 3. HISTORY OF CREATION.- It was part of the Intendancy of Trujillo that came to have nine pa...