United States Bureau of Land Management Tract Books, 1800-c. 1955
3,907 land management tract books containing official records of the land status and transactions involving surveyed public lands arranged by state and then by township and range. These books indicate who obtained the land, and include a physical description of the tract and where the land is located. The type of transaction is also recorded such as cash entry, credit entry, homesteads, patents (deeds) granted by the Federal Government, and other conveyances of title such as Indian allotments, internal improvement grants (to states), military bounty land warrants, private land claims, railroad grants, school grants, and swamp grants. Additional items of information included in the tract books are as follows: number of acres, date of sale, purchase price, land office, entry number, final Certificate of Purchase number, and notes on relinquishments and conversions.