The expedition was
so successful that the U.S. government financed a second trip in 1871. This
time, the party included photographers, and the images they captured gave most
Americans their first look at the splendors of the West. Later, as a member of
the U.S. Geological Survey, Powell made more than 30 trips through Arizona,
Colorado, and Utah. His detailed reports and precise maps set the standard for
generations of geographers.
In 1878, Powell had
turned his attention to preserving the land he knew so well. He sought
government protection for natural resources and lobbied against irrigation,
which he predicted would disrupt the fragile ecology. Powell also worked to
preserve the culture of vanishing Native American tribes. He created the first
classification system for Indian languages and, in 1878, became the first
director of the Bureau of Ethnology at the Smithsonian Institution.
While Powell is
remembered for his exploration and preservation exploits it is not as well
known that during the Civil War he served in the Union army and lost an arm at
Shiloh.