Library of Congress Open Archive Initiative Repository 1 (285.499 recursos) This is an extensive repository containing material relating to the American experience, a large portion of it digitised from the Library of Congress' collections. It includes, but is not limited to, images, monographs, sheet music, sound and visual recordings, pamphlets and posters. It is subdivided into over 100 thematic collections based on original documentation format, subject, author or donor. The site also benefits from an extensive range of background documentation and information on the creation, maintenance and development of this repository. Individual sections of the collection are periodically highlighted, and materials advising on the use of this repository's contents in a classroom situation are also provided. Each major subsection has a discrete site design and interface, although they are all part of the overarching whole.
6. Freighting in the Black Hills - Grabill, John C. H., photographer. A woman and a boy using bullwhackers to control a train of oxen.
7. Deadwood Central R.R. Engineer Corps - Grabill, John C. H., photographer. Outdoor group portrait of ten railroad engineers, wearing suits and hats, and a dog, posing in a row with surveyors' transits on tripods and measuring rods.
10. [Engineers Corps camp and visitors] - Grabill, John C. H., photographer. Some of the men are holding measuring poles and or standing next to surveyors' transits on tripods.
13. Grand review - Grabill, John C. H., photographer. Distant view of supply wagons and pack mules grouped in front of tents.
14. Near Fort Meade. "I" troop, 8th Cavalry - Grabill, John C. H., photographer. Military men in uniform, posed on horseback in rows between a river bed and hillside.
19. Colorado - Grabill, John C. H., photographer. Three buildings with signs reading: Grabill's Mining Exchange, Photographs, and El Paso Livery; river and houses in middleground; mountains in background.
20. "Hotel Minnekahta," Hot Springs, Dak. - Grabill, John C. H., photographer. Front view of hotel with men and women posed on the porches and balcony.