The 1838 Rendezvous Association is a historical preservation organization founded in 1989 to protect and honor the site of an 1838 mountain man rendezvous. Its work focuses on preserving this rare landmark and remembering the men, women, and children whose lives shaped the western landscape. The association presents the site as a place where the land and river remain lasting witnesses to that history.

The organization hosts the annual 1838 Mountain Man Rendezvous, with its 2026 gathering scheduled for June 24–28. Visitors can find event registration information, camp standards, directions to the original rendezvous site, and details about nearby rendezvous. The website also provides association resources, including membership information, board and governance documents, bylaws, historical research, links of interest, Dutch oven recipes, and a photo gallery. An online store and links to Visit Wyoming offer additional ways to explore the area and engage with the association. Together, these offerings support the group’s preservation mission while helping visitors learn about and experience the history associated with the rendezvous site.