Uncommon large edition shows in great detail the extent of public surveys in Montana at this time in its history - it was admitted as a state in 1889. Hydrology and topography are well developed on this colorful map. Remarkable detail throughout due to a scale of 1 inch to 15 miles. The map locates military posts (Forts - Assiniboine, Keogh, Maginnis, Custer, Camp Baker, etc.) Custer Hill, Custer's Monument, and the Reno battlefield; shows Yellowstone National Park in its entirety with major features. Extensive legend identifies land offices, Surveyor Generals Office, county seats, towns, villages and railroad stations, railroads (completed and proposed), military reservations, Indian reservations, railroad land grant limits, etc. The map is bound in the original 185-page report to Congress concerning the fragmentation of the Great Sioux Reservation in 1889. The report "Letter from the Secretary of the Interior in Relation to the affairs of the Indians at the Pine Ridge and Rosebud reservations in South Dakota" is dated March 15, 1892.

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Condition: B+

The map is folding as issued, excellent impression and color with full margins. A hint of offsetting, lower margin a little rough, and one small fold intersection split, edge tear. Report is disbound and has some pencil notations on last, blank page.