Oregon Historical County Records Guide
Multnomah County Records Inventory
Mining Claim Records
Series documents actions filed with the county related to mineral interest claims. Types of actions include mineral rights and royalty assignments, mineral interest claims, lease releases, interest stipulations, corrections, bills of sale and conveyance assignments, and location notices. Information includes names of involved parties; action types and dates; and volume and page numbers. The series may also include copies of claim location notices giving descriptions and details of individual claims.
Beginning in 1964 mining claims were recorded in the Book of Records (Clerk and Recorder Official Filings).
Records at the John B. Yeon Building, Microfilm Cabinet Near Room B15:
[Mineral Claim Index-General Land Office/Bureau of Land Management], ca.1874-ca.1982 (3 sheets of microfiche).
Records at a Related Web Site:
Online Land Records [includes various federal land survey records related to Oregon such as survey plats and field notes, mineral surveys, and historical indices], ca.1850-present (Bureau of Land Management).