• Rainbow over Half Dome

    Yosemite

    National Park California

Prescribed Fire History Map

Boundary map of Yosemite that marks past prescribed burn areas
Yosemite National Park helped lead the development of the National Park Service's prescribed burn program. Yosemite's first prescribed burn occurred in 1970. View the legend above to see the number of acres ignited by prescribed fires in more than four decades.
 

Did You Know?

View of Yosemite Valley from the Wawona Tunnel Vista.

Rockfall events have helped shape many of the outstanding features along Yosemite Valley's walls, including Royal Arches, North Dome, and Half Dome. Giant talus slopes that slant away from the Valley walls accumulate debris with each rockfall event.