Detroit, Toledo & Ironton Railroad Crossing, Wauseon, Ohio, June 1926

On the railroad, "grade crossing" refers not only to a railroad-roadway crossing, but also to the intersection of two different railroad lines. Both crossing types are seen in this photo. The road crossing is protected by signs with flashing warning lights. The crossing of the two railroads, farther in the distance, is protected by semaphore signals mounted atop tall poles.