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Under the Oregon Donation Land Act of 1850, Congress allowed 320 acres of land in Western territories to be claimed by a single person and 640 acres by a married couple. The claimants received final title to the land when they had lived on it four years and made certain improvements, or when they purchased their lands in lieu of fulfilling residency requirements. This volume of maps shows donation land claims, and other subsequent property holdings, in King County. The volume (probably a transcription, circa 1882, of U.S. Surveyor General maps) is a small (16 inches by 14 inches) bound blank folio into which thirty-six township maps have been drawn. Initial cartography utilized colored inks and a colored wash; later annotations were made in pencil. Each donation land claim is outlined in black ink and contains, as record information, owner name, acreage, claim number, and notification number. Coal lands and "cash entries" (claimant had purchased the land) are noted. Names and numbers correspond with ledger entries in Series 341, Field Survey Notes: Donation Land Claims (1882). In addition to property holdings, maps show watercourses (streams, springs, ponds, lakes); prairies and wetlands; resources (coal deposits, cranberry bogs); structures (roads, trails, wagon roads, school); and Native American villages and reservations. The volume is arranged in ascending numerical order by range (numbers 2-6) and within each range, by township (numbers 21-26).

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