10 largest fires in Yosemite history — Rim Fire makes list (maps)

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As of Monday morning, the Rim Fire had consumed about 150,000 acres, making it one of the worst fires in California history. It's also shaping up to be one of the worst ever seen in Yosemite National Park.

An analysis from the National Park Service in 2011 shows the 1996 Ackerson Fire, which ravaged about 60,000 acres, was Yosemite's largest recorded fire between 1930 and 2010. The next largest was the A-rock Fire, which burned 17,770 acres in 1990.

RELATED: Rim Fire: Massive wildfire near Yosemite one of California's worst at 149,780 acres (map)

But as park spokesman Tom Medema tells the Sacramento Bee, the Rim Fire has already burned about 15,000 acres of Yosemite National Park, much of it the same area that was burned in the Ackerson fire.  

Our own analysis of the geographic data being provided by the California Department of Forestry and Fire Protection indicates the Yosemite burn area might be closer to 20,000 acres. Either way, the Rim Fire is now at least third on the list of the top 10 largest fires recorded at the park.

You can see those fires listed below, from largest to smallest, along with acreage and the year each started.

1. Ackerson Fire

Acres burned: 59,153 | Date Started: 8/14/1996

View 1. Ackerson Fire in a larger map

2. A-rock Fire

Acres burned: 17,770 | Date started: 8/7/1990

View 2. A-rock Fire in a larger map

3. Rancheria Mt. Fire

Acres burned: 12,116 | Date started: 9/9/1948

View 3. Rancheria Mt. Fire in a larger map

4. Leconte Fire

Acres burned: 8,860 | Date started: 8/11/1999

View 4. Leconte Fire in a larger map

5. Big Meadow Fire

Acres burned: 7,558 | Date atarted: 8/26/2009

View 5. Big Meadow Fire in a larger map

6. Hoover Fire

Acres burned: 7,233 | Date started: 7/10/2001

View 6. Hoover Fire in a larger map

7. Steamboat Fire

Acres burned: 6,106 | Date started: 8/7/1990

View 7. Steamboat Fire in a larger map

8. Frog Fire

Acres burned: 6,031 | Date started: 7/21/2006

View 8. Frog Fire in a larger map

9. Kibbie Complex Fire

Acres burned: 5,574 | Date started: 7/29/2003

View 9. Kibbie Complex Fire in a larger map

10. Unnamed Fire (identified as "PW27")

Acres burned: 5,126 | Date started: 9/27/1978

View 10. Unnamed Fire in a larger map

And for comparison, here's the Rim fire perimeter:

View Rim Fire in a larger map | Last updated 8/26/13

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