Aerial Photographic Interpretation of Natural Vegetation in the Anchorage Area, Alaska

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Abstract
The difficult task of making a geographic inventory of Alaska can be done rapidly and accurately by aerial photographic interpretation. Examples are given from the work of a land-classification party in the Anchorage area during the summer of 1946. The natural vegetation was highly significant. All available information was used in the study of the photographs. Certain vegetative types could be recognized. Outlines were prepared of the distinguishing features of each type. These outlines, called "vegetative keys," were compared with field observations of the physical features in selected areas, and the resulting correlations were used to classify less accessible parts of the area without detailed field work. It is said that these keys can be used over large parts of Alaska, and have already proved to be capable of interpreting the landscape of the areas studied.

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