• Looking up at the Gateway Arch

    Jefferson

    National Expansion Memorial Missouri

There are park alerts in effect.
hide Alerts »
  • Due to the Industrial Rope Access Project at the Gateway Arch

    Visitors may enter the Arch at the south leg only. Tram rides to the top are still available, the observation deck at the top will have restrictions. Usual walking paths may be closed; please look for signage or a Ranger for walking directions.

Explorers

The first of many explorers of the uncharted regions of the newly acquired Louisiana Territory were Meriwether Lewis and William Clark. They were followed by other government sponsored expeditions led by pathfinders Pike, Long, and Frémont, among others. These men established important new routes for many who followed.

President Thomas Jefferson commissioned army officers Meriwether Lewis and William Clark to explore the Louisiana Territory, investigate potential resources, establish trade with the Indians and most importantly discover a passage to the Pacific Ocean through the Northwest. In 1803 President Jefferson presented Captain Lewis with a list of written instructions, saying that, "The object of your mission is to explore the Missouri River, and such principal streams of it which may offer the most direct and practicable water communication across the continent for the purposes of commerce..."

 

Did You Know?

Historic Old Courthouse photographed from the corner of 4th and Market

Land for the Historic Old Courthouse was donated in 1816 by Judge John Baptisite Charles Lucas and St. Louis founder Rene Auguste Chouteau. More...