The River of Doubt

Roosevelt nearly died while exploring an uncharted stretch of the Amazon. It was his final adventure

Theodore Roosevelt had carried the lethal dose of morphine with him for years. He had taken it to the American West, to the African savanna and, finally, down the River of Doubt--a twisting tributary deep in the Amazon rain forest. The glass vial was small enough to tuck into a leather satchel or slip into his luggage, nearly invisible beside his books, his socks and his eight extra pairs of eyeglasses. Easily overlooked, it was perhaps the most private possession of one of the world's most public men.

In December 1913, Roosevelt, then 55, and a small group of men embarked on...

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