Our motto, “Know the Earth… Show the Way… Understand the World,” reflect not only our own mission, but the mission of the Corps of Discovery two centuries ago. The National Geospatial-Intelligence Agency proudly following in the footsteps of explorers like Lewis and Clark. About 15 Corps of Discovery commemorative disks were set to honor the 200th anniversary of the surveying and mapping contributions of Lewis and Clark. Many other expeditions followed, driven not only by the desire for scientific discovery, but also by the need to show the way for America’s increasing migrations westward. One of the 3¾-inch bronze Corps of Discovery commemorative disks set at Lewis and Clark historical sites along the trail. As the nation looked west, other military and civilian expeditions followed Lewis and Clark and expanded our knowledge of the Earth. With open and classified missions, Lewis and Clark created products that included new maps of the territory reflecting their adventures. Planned and funded secretly, this was the first large government effort to explore the new lands Jefferson had purchased from France. They were to report on European and Indian military forces and alliances, trade patterns, and the geography, plant life and animals they found. In a classified tasking, Jefferson sent Meriwether Lewis, William Clark and their Corps of Discovery to explore the newly acquired Louisiana Purchase and other lands west of the Mississippi River. The United States geospatial intelligence effort began in earnest in 1803 with President Thomas Jefferson.
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