Amo, Stephen F.; Scott, Joe H.; Hartwell, Michael G. 1995. Age-class structure of old 

 growth ponderosa pine/Douglas-fir stands and its relationship to fire history. Res. 

 Pap. INT-RP-481. Ogden, UT: U.S. Department of Agriculture, Forest Service, 

 Intermountain Research Station. 25 p. 



Describes age structure of nine old growth ponderosa pine/Douglas-fir stands in 

 western Montana. Interprets the influence of past fires and 20th century fire exclu- 

 sion on stand structure. Gives implications for management to restore and maintain 

 these forests for multiple resource values. 



Keywords: forest health, forest succession, fire-dependent forest, all-aged stands 



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