Mexican, American, border, Tijuana, Mexico, San Ysidro, California, 1966, 1960s, I-5, crossing, boundary, frontier, historical aerial photograph, antique, historic, old, vintage, city, metro, metropolitan, municipal, municipality, urban, urbanized, beltway, drive, freeway, highway, infrastructure, interstate, motor, way, road, route, thruway, transit, transport, turnpike, aerial, map, straight, down, image, imagery, vertical, aerialarchives, aerials, air, elevated, from, high, image, over, overhead, overlooking, overview, photograph, photography, views, America, American, California, Californian, CA, west, western, United States, US, USA, black and white, monotone, duotone, central, America, Latin, American, Hispanic, Mexican, Mexico, San Diego county, DP876B, AHLV4144