Old Spanish Trail Centennial Association

The Old Spanish Trail Centennial Association (OST100) is celebrating the centennial of the transcontinental highway between Saint Augustine, Florida and San Diego.

This is an orientation and planning meeting for individuals and groups interested in planning or sponsoring a San Diego – Imperial County celebration next year (in November of 2023).

The association was organized to locate, revitalize and preserve the roadway, businesses and historic sites of the original 1920s OLD SPANISH TRAIL auto highway for a decade long Centennial Celebration with a 2029 motorcade grand finale from St. Augustine, Florida to San Diego, California.

The San Diego County sections of the Old Spanish Trail begin in downtown San Diego. The trail follows the approximate route of old U.S. Highway 80 with several variations and route changes over the years. The Imperial County sections also follows the US 80 corridor from Ocotillo to Yuma, AZ, the route includes the historic plank road section through the Imperial Sand Dunes.

Headquartered in San Antonio, Texas, OST100 has reenacted OST annual conferences in various cities since 2015. Local planning for past conferences has made for very successful seminars, OST city and county exhibits, walks and drives along the historic corridors.

For information or an invitation to the planning meeting, please contact: Charlotte Kahl, (210) 735-3503 or OST100Kahl@aol.com