Oregon Revised Statutes Protection from Fire § 477.315

(a) That is located in that part of the state lying easterly of the summit of the Cascade Mountains;

(b) That has not been classified as Class 1, Class 2 or Class 3 forestland under ORS 526.305 to 526.370; and

(c) That contains isolated tracts of forestland not so classified or not within a forest protection district, or that is primarily rangeland, undeveloped land or undeveloped area containing sagebrush, juniper and similar growths.

(a) Organized by owners of rangeland that is located within a rangeland protection system established under ORS 477.320 and lies wholly outside any forest protection district; or

(b) Organized with the approval of a county governing body to be a cost-neutral part of the emergency management program in a county having 200,000 or more acres of rangeland that are outside any forest protection district and are not protected by an association formed under paragraph (a) of this subsection.