August 1941. "Hull-Rust-Mahoning, world's largest open pit iron mine, near Hibbing, Minnesota." Medium format acetate negative by John Vachon. View full size.

February 1940. "Dance hall, Saturday night. Marshalltown, Iowa." Medium format acetate negative by Arthur Rothstein for the Farm Security Administration. View full size.

February 1940. "Main street (G Avenue) in Grundy Center, Iowa." Medium format acetate negative by Arthur Rothstein for the Farm Security Administration. View full size.

November 1939. "Privy. Dawes County, Nebraska." Medium format acetate negative by Arthur Rothstein for the Farm Security Administration. View full size.

January 1941. Midland, Pennsylvania. "Backyards of company houses and steel mill." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

January 1941. "Rochester, Pennsylvania. Ohio River town." Continuing the vista last seen here. Medium format negative by John Vachon for the Farm Security Administration. View full size.

January 1941. "Jones and Laughlin Steel Company. Beehive coke ovens. Aliquippa, Pennsylvania." Medium format acetate negative by John Vachon. View full size.

December 1940. "Christmas shopping crowds. Gadsden, Alabama." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

June 1938. "New Mexico desert. Highway No. 70. The route many refugees cross." Medium format negative by Dorothea Lange for the Farm Security Administration. View full size.

May 1937. "Children of migrant cotton field workers from Sweetwater, Oklahoma. Eight children in the family. Note the housing. Near Casa Grande project, Arizona." Medium format acetate negative by Dorothea Lange for the Farm Security Administration. View full size.

September 1939. Graceville, Minnesota. "High school boy talking to druggist." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

January 1941. Ambridge, Pennsylvania. "Employees of American Bridge Company (United States Steel) waiting for the bus." Acetate negative by John Vachon. View full size.

May 1940. Grant County, Illinois. "FSA rehabilitation borrower operating tractor. She and her mother run the farm without the assistance of any men." Medium format acetate negative by John Vachon for the Farm Security Administration. View full size.

September 1941. "Road through the mountains from Idaho Springs to Central City, Colorado." Photo by Marion Post Wolcott for the Farm Security Administration. View full size.

September 1941. "Buildings on main street of ghost town. Judith Basin, Montana." Medium format negative by Marion Post Wolcott for the Farm Security Administration. View full size.