CULTURALLY MODIFIED TREE. A tree that has been historically or prehistorically modified by native or non native people. In the field of archaeology a CMT is most commonly associated with Native peoples historical or prehistorical tree utilization. Tree use can be identified by scars from bark stripping, blazing, plank removal, test holes, or felling. Bark strips may be long and tapered vertically or wide and horizontal around the tree. The most common types of trees revealing these scars include red and yellow cedar, birch, lodgepole pine and hemlock.