The C subway line is part of the New York City Subway system, operating in Manhattan and Brooklyn. It primarily runs from 168th Street in Washington Heights to Brooklyn's Euclid Avenue, providing essential transit for commuters and residents along its route. The line is known for its local service, stopping at every station. The C line is colored blue on subway maps and shares tracks with the A line for part of its journey. It connects with several other subway lines, enhancing accessibility to various neighborhoods and key locations throughout the city.