Much of the current photogeologic effort is directed toward studies in 
the Colorado Plateau of Utah, Arizona, and New Mexico. This vast area of 
well-exposed, predominantly little~disturbed sedimentary rocks, lends itself 
ideally to photogeologic study. Here the primary objective is mapping the 
distribution of uranium-bearing formations, as shown in Figure |. Note how 
clearly the beds are exposed and hence how easy it is to map such an area from 
aerial photographs. 
Figure |. -- Permian-Triassic rocks of southeastern Utah demonstrating 
clarity of different rock formations in aerial view