district west of Ninth Avenue and Greenwich Street and above 10th Street was the location of numerous distilleries making turpentine and camphene, a lamp fuel. After the Civil War When development began again after the war in the 1870s, the tenor of the neighborhood changed. Since it was no longer considered a desirable area to live in, construction of single-family residences was replaced with the building of multiple-family dwellings, and the continued internal industrialization increased. In addition an elevated railroad line had been constructed through the neighborhood along Ninth Avenue and Greenwich Street, completed in 1869. Additional development began in the 1880s when two new markets began operating in the area. On the old freight yards, the Gansevoort Market (originally the "Farmer's Market"), an open-air space for the buying and selling of regional produce started in 1879, and the West Washington Market, 10 brick buildings used for meat, poultry and dairy transactions, relocated to the river side of West Street in 1884. By 1900 the area was home to 250 slaughterhouses and packing plants, and by the 1920s what had been a neighborhood based on mixture of marketplaces became more tightly focused on meatpacking and related activities – although other industries continued to be located there, including cigar-making, transportation-related businesses such as automobile repair, express services and garages, import-export firms, marine supplies, cosmetics, printing and many others. After decades of debate, the High Line elevated freight line was authorized in 1929 as part of the "West Side Improvement Plan", and the New York Central Railroad completed construction, passing through the neighborhood, in 1934. Decline and resurgence The area's decline began around the 1960s as part of the general decline of the waterfront area. Containerization of freight; the advent of supermarkets which changed the distribution pattern for meat, dairy and produce from a locally or regionally based system to a more national one; and the development of frozen foods and refrigerated trucks to deliver them were all factors in this, but meatpacking continued to be the major activity in the neighborhood through the 1970s. At the same time a new "industry", nightclubs and other entertainment and leisure operations catering to a gay clientele, began to spring up in the area. In the 1980s, as the industrial activities in the area continued their downturn, it became known as a center for drug dealing and prostitution, particularly involving transsexuals. Concurrent with the rise