Oljato Trading Post
A historic Navajo trading post on the western edge of Oljato–Monument Valley in southeastern Utah.
Last updated August 26, 2026
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Overview
Oljato Trading Post is a historic trading-post site on the western edge of Oljato–Monument Valley in San Juan County, Utah. Its name derives from the Navajo term “Oljéé’to,” commonly translated as “Moonwater.” The post was established in 1906 by John and Louisa Wetherill, members of a family associated with early tourism, archaeology, ranching, and commerce in the Four Corners region. At the time, Oljato was exceptionally isolated, and commercial links with the outside world were difficult. Supplies were hauled by horse-drawn wagon from Gallup, New Mexico, on a round trip that took approximately 21 days. The post served the practical and social functions characteristic of Navajo trading posts. Local Navajo producers could exchange or sell wool, lambs, and other goods, while the establishment supplied materials and provisions that were otherwise difficult to obtain in the remote region. It also functioned as a community gathering place. The traditional layout reflected these activities, with separate areas for wool and livestock transactions, wagon loading, storage, and an elevated location from which the trading area could be observed. The Wetherills relocated to Kayenta in 1910. The surviving building was constructed in 1921 by Joseph Hefferman, a licensed Anglo trader. Hefferman sold the property in 1936, after which the trading post passed through a succession of owners. These ownership changes did not diminish the site's historical importance as a representative example of the regional trading-post system and as a place connected to Navajo economic and community life. Oljato Trading Post was listed on the National Register of Historic Places on June 20, 1980. Its preservation challenges became especially visible in the twenty-first century. In 2020, stabilization work was undertaken through cooperation among the Utah State Historic Preservation Office, the Navajo Nation Historic Preservation Department, and preservation organizations. In 2021, the National Trust for Historic Preservation included the site on its list of America's Most Endangered Places. The available reference material documents the site's historical and preservation status but does not establish whether it currently operates as an active commercial trading post.
History
Oljato Trading Post originated in 1906, when John and Louisa Wetherill established a commercial post at the western edge of what is now Oljato–Monument Valley in southeastern Utah. The location was one of the most isolated settled areas in the United States, and the surrounding Navajo communities had comparatively limited contact with Hispanic and Anglo-American culture. The post therefore provided an important connection to external supply and trading networks. The Wetherills transported supplies from Gallup, New Mexico, using horse-drawn wagons. A return journey took about 21 days, illustrating both the remoteness of the site and the logistical demands of operating a business there. The trading post supported transactions involving locally produced Navajo goods, including wool and lambs, and supplied provisions and other materials. Beyond its commercial role, it became a social center for the surrounding community. The Wetherills moved to Kayenta in 1910. The building that survives today dates from 1921 and was constructed by Joseph Hefferman, who was a licensed Anglo trader. Hefferman sold the trading post in 1936, and the property subsequently had several owners. Its physical arrangement reflected the functions of a traditional Navajo trading post: designated spaces supported wool and livestock transactions, wagons could be loaded at appropriate areas, goods were stored on site, and an elevated section allowed activity in the trading area to be monitored. The site's significance was formally recognized on June 20, 1980, when Oljato Trading Post was added to the National Register of Historic Places. The designation reflects its association with the regional trading-post system, its architecture, and its connection to Navajo economic and social history. By the early twenty-first century, the building required preservation attention. In 2020, stabilization efforts involved the Utah State Historic Preservation Office, the Navajo Nation Historic Preservation Department, and preservation organizations. In 2021, the National Trust for Historic Preservation placed Oljato Trading Post on its list of America's Most Endangered Places, underscoring continuing concerns about the survival of the historic structure. The available sources do not confirm a current commercial operator or a present-day retail program.
- 2021
Named an America's Most Endangered Place
[1]The National Trust for Historic Preservation included the site in its America's Most Endangered Places list.
- 2020
Historic structure stabilized
[1]Preservation partners stabilized the building as part of efforts to address its physical condition.
- 1980
National Register listing
[1]Oljato Trading Post was added to the National Register of Historic Places on June 20.
- 1936
Hefferman sells the post
[1]Joseph Hefferman sold the trading post, after which the property passed through a series of owners.
- 1921
Present structure constructed
[1]Joseph Hefferman, a licensed Anglo trader, built the structure that forms the principal historic building associated with the site.
- 1910
Wetherills relocate to Kayenta
[1]The founding Wetherills moved to Kayenta, ending their direct residence and operating role at the Oljato post.
- 1906
Trading post established
[1]John and Louisa Wetherill founded a trading post at Oljato, creating a remote commercial and social hub for nearby Navajo communities.
Products and positioning
A historically significant remote trading post that connected Navajo producers and residents with regional supply networks while serving as a community social hub.
Agricultural and craft exchange · 1906
Navajo wool and lamb trading
The trading post provided a place where local Navajo producers could bring wool and lambs for exchange or sale. These transactions were central to the post's commercial role and connected local production with broader regional markets.
Remote-area general trading · 1906
General supplies and provisions
Oljato Trading Post supplied goods and provisions to residents in an isolated area where outside supplies had to be transported over long distances from Gallup, New Mexico. The specific product assortment is not detailed in the available source material.
Brand decisions
2020
Stabilization of the historic structureStrategyBackground
The historic building required preservation intervention after decades of exposure and changing ownership.
Action taken
The Utah State Historic Preservation Office, the Navajo Nation Historic Preservation Department, and preservation organizations undertook stabilization work.
Aftermath
The work helped address the building's immediate preservation needs, although the site's subsequent inclusion on the 2021 endangered-places list indicates that longer-term threats remained.
Sources1 sources
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