Pikes Peak Ocean to Ocean Highway was an early coast-to-coast highway in the United States. The route crossed the nation from New York City to Los Angeles, and was in direct competition with the Lincoln Highway and the National Old Trails Road. Its route markers were marked PP-OO.
History
It started as a boosterism campaign in Colorado Springs, and depended upon cities and towns along the route to participate with monetary contributions and road improvements. It was formalized March 18, 1914, at a meeting in St. Joseph, Missouri, with state and federal highway officials. The highway was completed in 1924.[1]
The route originally was to be from Washington, D.C., to San Francisco, but the existence of the good National Old Trails Road in the east made New York City a natural terminus, and competition with the Lincoln Highway and the ease of the southern route to California determined the change to Los Angeles.
