Officials have confirmed the Table Mountain A-frame rental cabin and Riders Cabin have been destroyed.
The A-frame near Blewett Pass is a popular rental cabin for stargazers, snowmobilers, skiers and others.
Lightning-sparked wildfires have burned thousands of acres of brush, grass and forest in central Washington state, and thousands of firefighters have been working for weeks to steer them away from hillside homes and communities.
Authorities say they're making progress keeping the fire at bay with little or no new fire growth. There were concerns Saturday that lightning storms and high winds would fuel blazes, but no lightning developed and the winds moderated.