INCREASING FORAGE YIELDS ON INTERMOUNTAIN WINTER RANGES 3 
water erosion. Extremes in weather conditions and prolonged droughts 
accentuated the seriousness of range depletion. Free use of winter 
ranges in the Intermountain region ended when they were put under 
management following passage of the Taylor Grazing Act of 1934. 
Today the ‘‘frontier”’ of the livestock industry les in the application 
of management practices which will restore and maintain ranges at their 
maximum production of both forage and livestock. This is particularly 
true of the winter ranges of the Intermountain region. 
The Desert Experimental Range, a unit of the Intermountain Forest 
and Range Experiment Station, maintained by the Forest Service, was 
established in 1933 to study the major phases of winter-range manage- 
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Figure 2.—Winter sheep ranges of the Intermountain region. 
