Geography According to the United States Census Bureau, the town has a total area of , of which is land and is water. Peru is drained by the Androscoggin River. Worthley Pond, two miles long by one-half mile wide, is in the southern part of the town. The tallest mountains are Mt. Zircon (2221 ft), Black Mountain (2129 ft) and Speckled Mountain (2116 ft).
Geography According to the United States Census Bureau the town has a total area of , of which is land and is water. Peru is drained by the Androscoggin River. Worthley Pond, two miles long by one-half mile wide, is in the southern part of the town. The tallest mountains are Mt. Zircon (2221 ft), Black Mountain (2129 ft) and Speckled Mountain (2116 ft,).