“The National Trunk Line”

Uncovering the Southern Borderlands
Along the Old Spanish Trail

The OST Centennial Celebration Association—formed five years ago—aims to coordinate the preservation and revitalization of historic sites along the Old Spanish Trail. Their website extends an open invitation to “anyone loving the open road,” echoing America’s enduring fascination with mobility, freedom, and the romance of the highway. This nostalgia continues to shape the identity of communities along the southern borderlands and beyond.

The allure of the Old Spanish Trail is rooted not only in its historic role connecting east and west but also in its symbolism—mirroring countless other American highways—as a pursuit of fast, affordable transportation. Yet, as cities today contend with challenges around public transit, infrastructure, and the unintended landscapes left in the wake of westward expansion, it becomes crucial to revisit the history of such routes. We are called to do so “not as spectators,” but as people who “belong to the land.”

This project examines the cultural geography, physical transformation, and development patterns of the Old Spanish Trail (OST) from the Texas–Louisiana border to the New Mexico state line. While many portions have been erased or overtaken by the uniformity of Interstate 10, others remain, telling a more nuanced and layered story—one that shifts, like the landscape itself, from east to west. Drawing inspiration from the work of J. B. Jackson, Ed Ruscha, and Lee Friedlander, the project follows the OST through archival research and contemporary documentation, treating the road as both a physical path and a cultural phenomenon.