alabama

Oregon County Map Formation by Year

Oregon County Map Abbreviations

  1. unorg. = unorganized
  2. g. = gained
  3. w. = with
  4. fr. = from
  5. atmt. = attachment
  6. exch = exchanged
  7. nca.= non county area
  8. ch. = changed
  9. Ba - Baker Co.
  10. Be - Benton Co.
  11. Cms - Clackamas Co.