The topography consists of a series of ridges dissected by deeply cut streams . Sheltered gullies in the south of the range are home to temperate rain forest , fern gullies and Mountain Ash forest '' Eucalyptus regnans '' , whereas the drier ridges and exposed northern slopes are covered by dry sclerophyll forest of stringybarks and box . The entire range is highly prone to bushfires , the most recent of which have been the 1983 Ash Wednesday bushfires , the 1997 Dandenong Ranges bushfires and small fires during the Black Saturday bushfires in 2009
Ash Wednesday bushfires
Ash Wednesday bushfires
Dandenong Ranges