FOKEST AND BANGE BESOUBCES OP UTAH 



91 



Under exceptional conditions, such as those on steep slopes where 

 the soil is easily eroded or where the timber or other cover is sparse, 

 it may be the best plan to graze or log lightly or not at all, because 



Figure 46. — A, This view on a high mountain watershed taken in 1910 shows the 

 serious erosion that followed destruction of the plant cover by overgrazing ; 

 B, the same area 15 years later. In the meantime, grazing has been regulated. 

 The gullies have rounded out and vegetation is gaining a foothold between and 

 in the gullies. Recovery following erosion is a very slow process. 



such areas are of greater value for watershed protection than for 

 the forage or timber they produce. In general, however, the harvest- 

 ing of forage and timber need not injure the watershed, and is a far 

 better practice than allowing these crops to decay and be wasted. 



