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Abstract
Living specimens of Picea engelmannii and Pinus albicaulis with ring series of 680 and 713 yr and estimated germination dates of > 700 yr are reported from two sites in the Canadian Rockies. These are the oldest individuals of these species reported in the literature and indicate that isolated subalpine stands of these trees offer good potential for tree-ring records of over 500 yr in the Canadian Rockies.