• Looking up at the Gateway Arch

    Jefferson

    National Expansion Memorial Missouri

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  • Pedestrian Access to the Gateway Arch From Downtown

    Pedestrian traffic on the Chestnut, Market St. and Pine St. bridges are closed. This leaves Walnut St. as the only point of entry to the Arch grounds from the city. If you park in the Arch garage there is access from the north end of the park. See maps. More »

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?

Drawing of Dred Scott from Frank Leslie's Illustrated Newspaper, 1857

In 1846, a slave named Dred Scott sued for his freedom at the St. Louis Courthouse. His case went all the way to the Supreme Court, where the verdict set the stage for the Civil War. Today, the Old Courthouse is part of the Jefferson National Expansion Memorial. Click to learn more about Dred Scott. More...