A national park, as distinct from a landscaped urban park, is a place set aside to preserve a natural geology or ecology deemed to possess significant inherent value. The concept of a national park thus constitutes a practical effort to place a specific ethical limit on technological development, sometimes for scientific as well as public benefit.

Historical Origin

Shortly after northwest Wyoming was annexed as part of the Louisiana Purchase in 1803, mountaineers and trappers began returning from their adventures in the American West with stories of a strange and mysterious place where steaming water bubbled from the ground and geysers shot like clockwork into the sky.

Rumors swirled for decades, until, in 1870, several expeditions were organized to explore the area around the Yellowstone River. The first expedition was so awed by the hissing, cauldron-like landscape that upon return members began a campaign for the creation of...