A conservation group and the American Civil Liberties Union have sued to get an advertisement against federal logging legislation placed at Portland International Airport.
The Port of Portland, which manages the airport, turned down the ad as "political." It's aimed at legislation to increase logging on federal forests, particularly the Western Oregon tracts known as the O&C lands, named after the Oregon and California Railroad.
The suit filed Thursday in Multnomah County says the port's refusal violates free-speech provisions of the U.S. and state constitutions.
The Eugene Airport accepted the ad, which mimics a picture postcard and depicts a denuded hillside.
The ad is sponsored by environmental groups, including Oregon Wild, plaintiff in the suit.
The state Supreme Court is considering a similar case involving the Portland transit agency TriMet.