Naturalist and explorer George Cherrie kept a meticulous diary of the journey down an uncharted river in the Brazilian Amazon, which he took with Theodore Roosevelt in 1914.
Theodore Roosevelt's great-grandson discusses the president's love of Lincoln, penchant for Hungarian poetry, and the book that inspired his conservation legacy.
Seven years into the construction of the Grand Coulee Dam, the reservoir behind the dam began to fill, submerging around 18,000 acres of land in the Colville Reservation.
