La Playa Trail was a historic bayside trail in San Diego, connecting the settled inland areas to the commercial anchorage at Old La Playa on San Diego Bay. La Playa Trail has been recognized as the oldest commercial trail in the Western United States. The trail was used during the pre-Hispanic, Spanish, Mexican and American periods of San Diego history. Much of the length of the original trail corresponds to the current Rosecrans Street in the San Diego neighborhood of Point Loma. There are eight registered National Historic Districts and 70 identified historic sites along the trail, according to the La Playa Trail Association, which was formed in 2005 to recognize the historic nature of the trail and to honor the many different peoples who traveled along it.