215.213 and 215.283 Uses permitted in exclusive farm use zones in marginal (before 1993) and nonmarginal lands counties; rules.
http://www.leg.state.or.us/ors/215.html
(1) The following uses may be established in any area zoned for exclusive farm use:
(a) Public or private schools, including all buildings essential to the operation of a school.
(b) Churches and cemeteries in conjunction with churches.
(c) The propagation or harvesting of a forest product.
(d) Utility facilities necessary for public service, including wetland waste treatment systems but not including commercial facilities for the purpose of generating electrical power for public use by sale or transmission towers over 200 feet in height. A utility facility necessary for public service may be established as provided in ORS 215.275.
(e) etc. etc.
Otherwise we'd probably be stuck with the substation, too, somewhere out west of Nyssa. Lucky those 500kV towers top out at 190 feet. Idaho Power likes to quote ORS 215.213 and 215.283 but I wonder if they've even read ORS 215.275.
