Rivers and Lakes
Peru has three main drainage systems. One comprises about 50 torrential streams that rise in the sierra and descend steeply to the coastal plain. The second comprises the tributaries of the Amazon River in the montaña region. In the third the principal feature is Lake Titicaca, which drains into LakePoopó in Bolivia through the DesaguaderoRiver.
The Napo, Tigre, and Pastaza rivers rise in Ecuador and flow into Peru. The latter two streams are tributaries of the MarañónRiver, and the Napo empties into the Amazon River.
The border between Peru and Colombia is delineated by the PutumayoRiver.religion, although it recognized Catholicism "as an important element in the historical, cultural, and moral formation of Peru." Other religions are permitted and tolerated, and small numbers of Protestants, Jews, and Muslims live in Peru.
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