The IND 8th Avenue Line is a rapid transit line in the New York City Subway system. It runs from Inwood-207th Street in Upper Manhattan to Chambers Street in Lower Manhattan, primarily along 8th Avenue. Opened in 1932, the line serves several key neighborhoods and connects with multiple other subway lines. It is known for its high ridership and provides access to important destinations, including the West Village and Hudson Yards. The line is identified by the letter "A" for its express service and "C" for its local service.