Aboriginal scarred trees are old, at least 100 years of age and up to the life span of the species of tree, which can be more than 500 years. Surviving scarred trees are relatively rare owing to the land clearing practices of early European settlers, bushfire and natural attrition. As scarred trees are not very common they are assigned a much higher significance in the ACT than they may be elsewhere in the country.


 
There is an excellent Scarred Tree Identification Manual (here)(pdf)
And another (here)(pdf) 

Red Hill scarred tree (link here)
Wanniassa scarred trees (link here)
Westridge scarred trees (link here)
Canoe tree II (wanniassa)(here)


(above) Aboriginal bark canoe (1938) made out of a sheet of bark folded and tied at the ends with plant-fibre string. The bow is folded to a point and the stern has a squared end. It measures 3m (9 feet) X  45 cm (18 inches).

Video: How to make an Aboriginal bark canoe...




A video showing the making of a Wira or Coolomon: 16mm movie of an Aborigine who expertly makes a wira out of the bark of a tree.



Wanniassa Canoe Tree II - Aboriginal scarred tree 24/6/2010.

  
Opposite side coolamon/sheild ?