Efforts to protect delicate and irreplaceable ecosystems, wildlife and landscape were being carried out long ago, with one milestone's birthday today.
Forty-five years ago today, on Sept. 3, 1964, President Lyndon Johnson signed the Wilderness Act. His signature on the legislative piece in turn, according to the National Park Service Web site, spawned the National Wilderness Prevention System, recognizing wilderness as "an area where the earth and its community of life are untrammeled by man, where man himself is a visitor who does not remain."

