Oregon Revised Statutes Public Lands § 273.905

All deeds prior to February 20, 1891, to state, school, and university lands, the purchase price of which was paid to the board of commissioners for the sale of school and university lands and for the investment of the fund arising therefrom, hereby are confirmed to the grantees of the state, or to their lawful heirs or assigns, together with all rights, title or interest which the state might or could have in any of the said lands. This section shall not apply to or confirm the title to any lands which were procured by false swearing or by fraudulent representations.