Oregon Historical County Records Guide
Columbia County Records Inventory
Tax Lot Cards
Tax lot cards, which contain official descriptions of real property, are used to track land ownership and lot size and also may serve as a deed reference. Records include tax lot number; the location of the land in reference to township, range, and section; and a description and record of changes to the property, acreage, and land owner.
Tax lot information is now maintained electronically.
Records at the Columbia County Courthouse Annex, Assessor's Office Break
[Official Record of Descriptions of Real Properties], ca.1969-2000 (75 volumes).