National Geographic Society Research: Final report of Grant #5791-96: Floristic Inventory of the Bosque de Protección del Río Alto, San Martín, Peru, including photos and maps.
PromPeru : San Martin: Detailed description including location, history, main attractions, typical food, travel services and festivities calendar.
San Marcos: History, geography and customs of this settlement in the department of San Martin.
San Martin Department of Tourism and Commerce: Extensive information about tourism in the department of San Martin in the North of Peru. It includes information about ecotourism, areas of natural beauty, parks, indigenous cultures, flora, fauna, crafts, local food and dishes, maps and photos. Click on the "English" link at the top of the page.
Schaffer Library of Drug Policy: Report discussing aspects relating to the Santa Lucia antidrug base, in the Upper Huallaga Valley in Peru and the rational for discontinuation of operations there.
TinganaPeru.com: Tingana Magic tour operator based in Moyobamba offers packages throughout the Alto Mayo area (Rioja and Moyobamba) combining adventure tours and eco tours.