March 1940. "Highway after blizzard. Brattleboro, Vermont." Medium format negative by Marion Post Wolcott for the Farm Security Administration. View full size.

September 1939. "Ducktown, Tennessee. Train bringing copper ore out of mine. Fumes from smelting copper for sulfuric acid have destroyed all vegetation and eroded the land." Medium format negative by Marion Post Wolcott for the Farm Security Administration. View full size.

September 1939. "Ducktown, Tennessee. Fumes from smelting copper for sulfuric acid have destroyed all vegetation and eroded the land." Medium format acetate negative by Marion Post Wolcott for the Farm Security Administration. View full size.

Dutchess County, New York, circa 1902. "Mount Beacon Casino and power house, Fishkill-on-the-Hudson, N.Y." At right, a car of the Mount Beacon Incline Railway. 8x10 inch glass negative, Detroit Photographic Company. View full size.

Circa 1900. "Evening on the Potomac, Washington, D.C." 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.

Mount Pocono, Pennsylvania, circa 1900. "Near Mount Pleasant." Looming in the background, Mount Pleasant House. 8x10 inch glass negative. View full size.

        UPDATE: Shorpy member keyjan's sleuthing reveals the mysterious hole to be Wooton (or Wootton) Spring.

Monroe County, Pennsylvania, circa 1900. "Riverside drive, Delaware Water Gap." The sign on the tree and inscription over the hole are, unfortunately, not quite legible. 8x10 inch glass negative, Detroit Photographic Company. View full size.

Upstate New York circa 1906. "Ausable Chasm, up from Table Rock." The "Grand Canyon of the Adirondacks." 8x10 inch glass negative. View full size.

October 1939. "A stumpy valley where new farms are being established. Photos show character of land which settlers are buying -- stump land farmers making a new start in the Priest River Valley, Idaho." Medium format acetate negative by Dorothea Lange for the Farm Security Administration. View full size.

Mount Pocono, Pennsylvania, circa 1901. "Pocono Mountain House and Springs," a popular summer resort at the turn of the century. 8x10 inch dry plate glass negative, Detroit Photographic Company. View full size.

July 1939. "Northern Pacific railroad tracks west of Fargo, North Dakota." Photo by Arthur Rothstein for the Farm Security Administration. View full size.

October 1939. "Western Pacific line runs through unclaimed desert of northern Oregon. Ten miles from railroad station at Irrigon. Morrow County, Oregon." Photo by Dorothea Lange for the Farm Security Administration. View full size.

December 1942. "Creede, Colorado. Lead and silver mining in a former ghost town." Photo by Andreas Feininger, Office of War Information. View full size.

Pen-Mar Park, Maryland, circa 1906. "North from Brinkwood." With Mr. William Henry Jackson himself at the camera in this Blue Ridge mountain resort. 8x10 inch dry plate glass negative, Detroit Publishing Company. View full size.

March 1940. "Wasatch Mountains. Summit County, Utah." Photo by Arthur Rothstein for the Farm Security Administration. View full size.