In the early 20th century, America has a dozen national parks, but they are a haphazard patchwork of special places under the supervision of different federal agencies. The conservation movement, after failing to stop the Hetch Hetchy dam, pushes the government to establish one unified agency to oversee all the parks, leading to the establishment of the National Park Service in 1916. Its first director, Stephen Mather, a wealthy businessman and passionate...

While visiting the parks was once predominantly the domain of Americans wealthy enough to afford the high-priced train tours, the advent of the automobile allows more people than ever before to visit the parks. Mather embraces this opportunity and works to build more roads in the parks. Some park enthusiasts, such as Margaret and Edward Gehrke of Nebraska, begin "collecting" parks, making a point to visit as many as they can. In North Carolina, Horace...

Following World War II, the parks are overwhelmed as visitation reaches 62 million people a year. A new billion-dollar campaign – Mission 66 – is created to build facilities and infrastructure that can accommodate the flood of visitors. A biologist named Adolph Murie introduces the revolutionary notion that predatory animals, which are still hunted, deserve the same protection as other wildlife. In Florida, Lancelot Jones, the grandson of a slave,...

Evaluates Theodore Roosevelt's role in launching modern conservationsim, identifying the contributions of such influences as James Audubon and John Muir while describing how Roosevelt's exposure to natural wonders in his early life shaped his environmental values.

"In 2006, Julianne Lutz Warren (née Newton) asked readers to rediscover one of history's most renowned conservationists. Aldo Leopold's Odyssey was hailed by The New York Times as a "biography of ideas," making "us feel the loss of what might have followed A Sand County Almanac by showing us in authoritative detail what led up to it." Warren's astute narrative quickly became an essential part of the Leopold canon, introducing new readers to the father...

"President John F. Kennedy officially dedicated the Pinchot Institute for Conservation on September 24, 1963 to further the legacy and activism of conservationist Gifford Pinchot (1865-1946). Pinchot was the first chief of the United States Forest Service, appointed by Theodore Roosevelt in 1905. During his five-year term, he more than tripled the national forest reserves to 172 million acres. A pioneer in his field, Pinchot is widely regarded as...