Archives

Gray archival boxes on shelves.

NPS Photo / Jennifer Clark

 

Research Information

Gateway Arch National Park Research Center

Location:
815 Olive St., Ste. 20
Saint Louis, MO 63101-1507

Hours:
Monday - Friday
9:30 a.m. - 5:00 p.m.
excepting Federal holidays.

By appointment only.

If you would like ask about our collections, or schedule a research appointment, please send an inquiry via our online contact form.


Gateway Arch National Park Archives are located in downtown St. Louis at the historic Old Post Office. We preserve records and manuscripts that document the administrative history of the park and its associated themes. As the corporate memory of the Gateway Arch National Park (formerly Jefferson National Expansion Memorial), the Archives also make their resources available to the public in accordance with objectives outlined in the park's Statement for Management:

 

to enhance and enlarge public understanding and appreciation of the significance of 19th century American westward expansion and of the related individual significance of the Old Courthouse, the Arch, and of the early development of St. Louis.

 
The archives currently contain 43 individual collections, 22 of which have been processed and are available upon request. Most of the collections relate to the development and administration of the Gateway Arch National Park site, including the construction of the Gateway Arch and its visitor center and museum.

Public researchers are welcome to use archival and library materials within the Reading Room. Library circulation privileges are granted to park staff only.

Access to materials may dependent upon physical condition, copyright, and level of processing to date by the park staff. To inquire about researching the collection or to set up a research appointment, write to us using our online contact form.
 

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Last updated: February 11, 2026

Contact Info

Mailing Address:

11 North 4th Street
St. Louis, MO 63102

Phone:

314 655-1600

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