PHOTOMORPHIC MAPPING FOR LAND-USE PLANNING.

The use of the photomorphic mapping technique is described, in order to delineate and compare the different land types in Boulder County, Colorado, according to their constraints and values for agricultural and urban uses. Using high-altitude color infra-red aerial photography of Boulder County at a scale of 1:100,000, photomorphic areas were delineated according to similarities in pattern, tone, and texture on the photographs. The boundaries of the areas were checked and adjusted using information from thematic maps and sampling data. Constraints on specific land uses in the County could then be described on a regional basis, using the photomorphic areas as a framework.