Oregon Revised Statutes Property Rights and Transactions § 105.710

The complaint in a boundary suit is sufficient if it appears therefrom that the plaintiff and defendant are owners of adjacent lands, some part of which is in the county in which the suit is brought and that there is a controversy or dispute between the parties concerning their boundary or dividing line. It shall not be necessary to set forth the nature of the dispute or controversy except that the plaintiff shall describe the boundary or dividing line as the plaintiff claims it to be. The defendant in the answer shall set forth the nature of the claim of the defendant with reference to the location of the line in controversy.