The wildfires in California have been burning for almost two weeks now, and 3,700 firefighters are battling day and night to contain it.
The Rim Fire, as it has been called, covers an area of around 288 square miles - that's about the size of the city of Edinburgh in Scotland.
In the past few days the fires have hit the outskirts of the Yosemite National Park, and a reservoir that supplies water to the area has been covered in ash.
Many people have had to leave their homes and some houses have been destroyed.
It started on 17 August but nobody knows how.
August is fourteen and lives close to what's happening - watch the video to see how it's affecting him.