74 



the land which remained idle ever}' alternate year is now producing 

 red clover or alfalfa. It was likewise shown b}^ the same agency that 

 the climate and soil of Gallatin Valley were peculiarly adapted to the 

 growth of brewing barley, which accounts for the large acreage in this 

 crop. 



Acreage of irrigated crops under Middle Creek canal for 1899. 



Acres. 



Barley 1'438 



Oats 597 



Wheat 118 



Timothy and clover 1, -105 



Clover and alfalfa 1-i" 



Other crops 1'^^ 



Total 3,853 



The areas watered were: 1899, 3,853 acres; 1900, 3,853 acres; 1901, 

 3,168 acres; 1902, 4,828 acres; 1903, 4,828 acres. 



Duty of water under Middle Creek canal f>r the years 1899, 1900, 1901, 1902, and 1903.a 



nSee diagram, fig. 11. 



OTilER CANAL.S FROM MIDDLE CREEK. 



Besides the Middle Creek canal there are 12 smaller ditches, which 

 tap the same source. These 13 ditches divert the entire flow of 

 Middle Creek after the spring flood has su))sided. The maximum flow 

 occurs from March 10 to June 20 of each year. When the highest 

 water occurs in the second week of June the daily decrease in the stream 

 is so great that all the flow is utilized before July 1, but when it occurs 

 as late as the third week in June there may be an excess of water 

 which is discharged into the East Gallatin and from thence into the 

 Missouri River during the flrst week in July. As a rule, however, 

 there is no surplus after July 1. 



The following flgures on the summer flow of Middle Creek have 

 been computed chiefly from measurements made by the United States 

 Geological Survey at the mouth of Middle Creek Canyon and a])Out 1 

 mile above the highest ditch which diverts water for irrigation. 



