Dallanea 1988 Journal SE facing slope of a hillside at the top (N) side of a large t flat grassland area. This area is of interest because several Dipodomys occur here. Slope 1 was steep, ~ a 50° incline, with an E exposure, Slope 2 was shallower, about 30° with a S. exposure. The deep ravine had about a 4 ft width at the top with a 4 foot depth; its sides were 50-60° incline. The soil in this ravine was loose and soft, the lambs were loose and soft, vegetation was thick in places (~40% cover). In this area D. ingens were found in open areas on the slopes, in association with their mounds. D. nitratoides were in the shallower ravines or in the deep ravine. A third species was a narrow faced K-rat of good size with feet that were more stout than those of D. ingens; this is probably D. agilis perplexus (more collected.) In addition