The principal difference in properties between the Pate and Eden Series is in the amount of coarse fraction. Eden soils, which occur on the higher, steeper reaches of the slopes, contain more rock fragments than the Pate soils. The amount of increase is illustrated by the increase in rock fragments larger than about 10 cm exposed in the walls of the trenches. In trench 1, the most downhill trench, rock fragments occupied just 1.4 percent of the exposed trench wall. In trenches 2 and 3, just uphill from Delhi Pike, rock fragments compose 3.5 and 2.6 percent, respectively, of the trench walls. In trench 4,6-12 m farther uphill than trenches 2 and 3, rock fragments compose 4.6 percent of the trench wall. And, at the upper end of trench 4, rock fragments compose 9 percent of the trench wall. While these amounts of coarse fraction might influence the physical properties of the colluvium somewhat, nowhere is the coarse fraction large enough to dominate the behavior of the soil. The mechanical behavior of the soil is dominated by the properties of the fine fraction.