Pith-to-bark increment cores were obtained at breast height of 225 western larch parent trees from the interior of British Columbia. The cores were divided into juvenile (first 15 annual growth rings from the pith) and mature wood sections (from growth ring 16 to the bark) and assessed separately for wood density. The mature wood had an average wood density of 0.493 gms/cm3. This was significantly higher than the density of the juvenile wood which averaged 0.468 gms/cm3. The Spearman Rank Correlation between the mature and juvenile wood densities was 0.58 and highly significant (p = 0.0001).