21. The Cascades, Sparks Foundation, Jackson, Mich. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
22. Cavern cascade, Watkins Glen, N. Y. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
23. Center Rutland Fall, Otter Creek, Rutland, Vermont Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
24. Crystal Cascade, Tuckerman's Ravine, Mt. Washington, N.H. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
25. Crystal Cascade, Tuckerman's Ravine, Mt. Washington, N.H. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
26. Crystal Cascades, Tuckerman's Ravine, Mt. Washington, N.H. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
27. Crystal Cascades, Tuckerman's Ravine, Mt. Washington, N.H. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
28. Cucumber Falls on Ohiopyle Road off U.S. Route #40 Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
29. Cucumber Falls on Ohiopyle Road off U.S. Route #40 Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
30. Davis, W. Va. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1960–1979] Institution: Boston Public Library
31. Diana's Bath, North Conway, White Mountains, N.H. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
32. Diana's Bath, North Conway, White Mountains, N.H. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
33. Diana's Bath, North Conway, White Mountains, N.H. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
34. Double Falls, Torrington, Conn., Burr Pond Road Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
35. Dry Run near Eagles Mere, Pennsylvania Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
36. Emerson's Falls, St. Johnsbury, Vt. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
37. Empires State Building, New York. Prospect Point, Niagara Falls. Statute of Liberty, New York Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
38. The Falls, Ausable Chasm, N. Y. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
39. The falls in the Hudson at Glens Falls, New York Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library
40. Fish Wheel and Indian Snagging Salmon at Celilo Falls on Columbia River, Oregon. Indians have perpetual fishing rights at the falls. Format: Postcards/Cards Collection: Tichnor Brothers Postcard Collection Date: [ca. 1930–1945] Institution: Boston Public Library