Department Bulletin 1430 
Plate XVI 
Pecos River. (Tributary of Rio Grande) 
Fig. 1.— Erosion following removal of timber cover and as a result of excessive grazing. Santa 
Fe Creek, N. Mex. Typical of the headwater region of the Rio Grande and the southern 
tributaries of the Colorado River 
■■* ,./T' 
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Arkansas River 
Fig. 2.— Erosion in dry gulch tributary to Fountain Creek, near Pueblo, Colo. Erosion of 
this kind is not an infrequent sequence of heavy rains in this region of unconsolidated soils 
which lack the protective cover of vegetation. Many similar arroyos can be found on the 
Pecos River, Rio Grande, and tributaries of the Colorado River in New Mexico 
