Timetables of the Pacific Coast Railway list it as Berros, 30.1 miles from San Luis Obispo, between Arroyo Grande and the summit on the way to Santa Maria. It was never a large stop. But a three-foot-gauge railroad running through a valley changes what the valley is for.
The line reached Arroyo Grande in 1881 and Santa Maria in 1882, and to get from one to the other it climbed through Los Berros. Maria Josefa Dana, widow of the captain who held Rancho Nipomo, gave the railway its right of way across the rancho and took her payment in the form she liked best: free rides for life. For the next fifty years the little trains carried out stone from the quarry, then crops from the mesa, and carried in everything a country valley could not make for itself.
Passenger service faded in the 1930s, the branches were pulled up, and by the early 1940s the Pacific Coast Railway was gone. Nothing marks the stop today. If you know where to look, a level bench along the hillside is the grade, keeping its gentle railroad gradient long after the rails went for scrap.