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Since protection from erosion, and the regulation of the flow of 

 important streams by the maintenance of an unbroken forest cover on 

 their watersheds, is not financially possible for the private ovmer, 

 it becomes the duty of the state to provide the necessary protection 

 forests, and to reserve tkem-for management to this end. Buch areas 

 lend themselves well to development for ■ recreational use, since 

 they naturally occupy the higher land and mountain slopes, and are 

 usually the most picturesque spots in the locality. In order to 

 provide an unbroken forest cover for protection and also wilderness 

 conditions for the more extensive type of recreational use, cutting 

 may be forbidden on these areas, except where necessary and advisable 

 for the establishment or improvement of trails, fire lines, look out 

 stations, or camp grounds. 



Recreational use properly demands further reservation of areas 

 for its purpose than is provided by the hillside or mountainous pro- 

 tection forests. The lakes and streams are important in this use 

 and the forests loitering them should be reserved. In this coimectioE 

 it may be noted that there is an interesting streamflow experiment now 

 in progress at Wagon Wheel (Jap, Oolorado, which has as one of its 

 objects the determination of the influence which a narrow strip of 

 forest, bordering a stream, may have on the regulation of its flow. 



I no i 



In a preliminary report of this experiment, by ±5ates and Henry, 

 it is stated that quantitative analysis of the discharge into those 

 streams from surface run off resulting from summer rains, indicates 

 that it is only the water falling in the streams, and on moist ground 

 within a few feet of them, which temporarily augments their flow. 



