the branch. In 1965, service was abandoned between Williams Bay and Lake Geneva. In 1975, service ended between Lake Geneva and Richmond. In 1981, service between McHenry and Richmond ended. Rails and ties north of the Cargill plant in Ringwood were removed during the 1980s, and the right of way converted to a trail. Service was discontinued to St. Charles in 1951. Service between Geneva and Aurora and Elgin and Crystal Lake was discontinued in the early 1930s. Service to Freeport ceased in the late 1940s. Additional notes Operations The CNW was known for running on the left-hand side when running on double track mainlines. In the United States, most railroads used the right-hand track along double-track mainlines, while left-hand running was more common in countries where British companies built the railroads. According to a display in Metra's station, the reason for this was a combination of chance and inertia. When originally built as single-line trackage, the C&NW arbitrarily placed its stations on the left-hand side of the tracks (when headed inbound toward Chicago). Later, when a second track was added, it was placed on the side away from the stations so as not to force them to relocate. Since most passengers waiting at the stations were headed toward Chicago, the inbound track remained the one closest to the station platforms. The expense of reconfiguring signals and switches has prevented a conversion to right-hand operation ever since. The Chicago and North Western was known for its installation of Western Railroad Supply Company wigwag signals at many of its crossing in the 1920–1940s. Almost every town on their route had at least the main crossing in town protected by them. The most common style were the Center Harp shorties. They were almost iconic to the CNW. Many of them, which were grandfathered in after the Federal Railroad Administration ruled them inadequate protection in 1949, survived until the 1970s and a few remain on lines in Wisconsin that have been sold off to other railroads. Lack of available parts and upgrades to roads have replaced all but a few of them. The railroad operated what was once the largest "potato yard" or potato market, at its Chicago Wood Street yards. Potatoes came to the yard from every point in the United States to be bought or traded by produce dealers and brokers. While the facility came to be known as the "potato