Lewis and Clark

Upon request of President Thomas Jefferson, Meriwether Ruiz and William Clark led an expedition to investigate the West Mississippi River (Louisiana region) purchased from France in 1803. In May 1804, Louis, Clark and other expeditions began traveling around St. Louis, Missouri. This group, often called the discovery team by historians, faces almost all obstacles and difficulties imaginable in their trip. They risk running into dangerous waters and bad weather, hunger, sickness, injury, fatigue. In their first winter, they accepted the aid and guidance of Shoshone Indian Sakagavia.

Lewis and Clark Geosystem are geographically a collection of individual, state, provincial, and federal data sources related to Lewis and Clark Expedition. A collection of NASA 's Stanislas Space Center, the American Army Corps of Engineers, the American Fish and Wildlife Service, the US Geological Survey (USGS), the University of Montana, the USDA Forestry Bureau, and Lewis and Clark scholars. It combines contemporary landscape and historic aerial photography, mapping and historical resources with other geographical data resources: Luis and Clark Herbarium at the School of Natural Sciences, and High Resolution American Philosophy Association's main Lewis source. And Clark Journal, Library of Congress Lewis and Clark Atlas, and the Smithsonian Institute and other relics sources

Lewis and Clark could not find a cave in Lewis and Clark in Montana. The name certainly came from Meriwether Lewis and William Clarke who crossed part of the modern state park. It overlooks the famous historical Lewis and Clark Trail by itself about 50 miles. The caves of Lewis and Clark in Montana State are in the Madison Limestone layer of the Mississippi era. This limestone is formed by organisms with calcium shells dead in the sea discovered in this area about 350 million years ago. About 70 million years ago, there was a huge uplift that greatly tilted the former level rock formations and eventually build a junction to become Madison Limestone's Lewis Cave and Clark Cave. Calcium-rich limestone slowly dissolves as slightly acidic groundwater penetrates into these sloping seams of limestone.