Variations in fire frequency and climate over the past 17000 yr in central Yellowstone National Park. 
S.H. Millspaugh, C. Whitlock and P.J. Bartlein (2000). 
Geology 28:211-214.

Reprint .pdf  (300 KB)

  Figure 1:  .gif     .pdf

  Figure 2:  .gif     .pdf

  Figure 3:  .gif     .pdf