Snow gum was sampled in 15 sites at altitudes from 1540 to 1820m. The population age structure
reflects the incidence of fire and grazing, which have affected the woodland since 1900. Evidence for
recruitment on three occasions prior to 1900 is given, and it is suggested that two of these may have
arisen as a result of fire. Whereas pre-disturbance stem densities calculated from remnants of previous
populations suggest densities of between 24 and 240 stems per hectare according to site, current stem
densities arising from flushes of regeneration this century are calculated as between 700 and 5550 stems
per hectare. In 1973, levels of failing stems within juvenile, mature and old subpopulations, while
variable, suggest that it may be 100-200 or more years before stem densities approach the calculated
pre-disturbance densities. The work raises park management issues: what structural forms of woodland
are appropriate in the Park; what effect allowing natural senescence to thin existing woodland will have
on fire hazard and other components of the ecosystem; the need for a long-term monitoring system.