WATER POWER 



209 



and used as an auxiliary. The voltage of the system was raised to 46,200 

 and additional transmission lines built to Butte, to the Conrey Placer Mining 

 Company in Alder gulch, to the Three Forks cement plant and to the towns 

 <^;f Bozeman, Livingston, and later to Billings. 



"On the Missouri river, below Canyon Ferry, was constructed the 

 Ilauser lake plant with a 60-foot dam and a capacity of 14,000 kilowatts. 

 This plant was connected with the transmission lines to Butte and the lines 

 were extended to supply power to the Washoe smielter at Anaconda. 

 Numerous branches and extensions were also made between Butte and 

 ITelena to supply power to various small mines located in the intervening 

 districts, 



"The greatest natural power site in the State, and one of the greatest 

 in the country, is on the Missouri river, near the city of Great Falls. In a 



Thompson Falls, Where a 30,000 Kilowatt Plant is Now Being Installed by the Montana 



Power Company. 



distance of eight miles the river falls approximately 400 feet, ihalf of this 

 drop being in abrupt falls, making power development particu- 

 larly easy, and making feasible a total development of about 

 125,000 kilowatts. 



"In 1910 the first large development was made at this 

 in the State, point. This development w'as called the Rainbow plant, after 

 the falls of the same name. A low diversion dam was built 

 above the falls and the water conducted through two 15-foot 6-inch steel 

 pipes; to a point below the falls, where it was utilized at a head of 105 feet. 

 Generating apparatus having a capacity of 21,000 kilowatts was installed, 

 but upon test it was found that both the water wheels and generators con- 



As to the 

 Greatest 

 Power Site 



— The reclamation act means much to Montana. 



