[5] The trail was already established by the time the Spanish settlers arrived in 1769; the first inhabitants of the area, including the Kumeyaay tribe, used it to access the beaches of San Diego Bay.
[7] Cargo which had been unloaded by ship at Ballast Point in Old La Playa was transported along the trail several miles inland to Old Town.
[3] In 1934, six commemorative terra cotta plaques were placed along the length of the trail by the local chapter of the Daughters of the American Revolution[10] and other groups,[11] based on a relief designed by sculptor Rose M.
[12] The original six were located at Mission San Diego de Alcala; at the foot of Presidio Hill in Old Town; near the intersection of Rosecrans St. and Midway Blvd.
in the Midway area; at the corner of Rosecrans and Lytton streets in Loma Portal, across from the Naval Training Center San Diego golf course; at the corner of Rosecrans and Byron streets in Roseville; and at the site of the fuel depot at Naval Base Point Loma.