The Gresham Fire Department battled a Three Alarm fire Thursday afternoon at Camping World RV Sales in Gresham.
Firefighters had to take special precautions, because of propane that was stored on the site.
The strong east winds from the Columbia River Gorge caused the flames to spread.
10 to 15 trailers and motorhomes were damaged.
There were no injuries.
The cause of the fire isn't known.