storing fifty tons of fish food. Some repairs were made to the hatchery 

 building, and the yard and driveway have been newly surfaced. 



Construction at the Arlee station includes a new hatchery building 

 41 feet by 84 feet, with built-in refrigeration and storage rooms, food- 

 grinding room, and office space. This building is equipped with ten 

 concrete tanks 32 feet long and 45 inches wide and 30 inches deep, which 

 will enable holding fish in the hatchery building to a larger size than 

 can be done with the old trough system. Two new four-room cottages 

 and a four-stall garage and workshop have been completed . A pond 600 

 feet long and 200 feet wide has been constructed for the purpose of 

 holding brood stock. This stock of rainbow, which spawn in December, 

 will annually produce 3,000,000 eggs when in full production. The planned 

 improvements at the Arlee station are only about fifty per cent com- 

 plete, as it is planned to put in ten of the raceway-type ponds as soon 

 as possible. When the ten ponds are completed, this station should turn 

 out 400,000 fish from four to six inches annually. 



The Lewistown station enlargement centers around a new hatchery 

 building 41 feet by 84 feet with 18 inside tanks.. These tanks are 32 

 feet long by 28 inches wide and 28 inches deep. Like the Arlee hatchery 

 building, this hatchery has built-in refrigeration and storage space, a 

 work shop and an office. A new pipeline was laid from the spring to 

 the hatchery and ponds to insure an ample supply of water. Four of 

 the raceway-type ponds were built at this station. With the new con- 

 erte ponds and the large dirt ponds already in use at this station, it 

 should produce 300,000 fish from four to six inches in addition to the 

 usual quota of smaller fish. 



At the Emigrant station the old troughs formerly used in the 

 hatchery were removed and ten concrete tanks built in their place. 

 These tanks are 16 feet long by 28 inches wide, and 30 inches deep. 

 This improvement will enable holding larger fish and many times the 

 numbers of fish formerly held in the hatchery. Additional improvements 

 include four of the concrete raceway-type ponds, a new pipe in the 

 hatchery to replace the old head trough, and about 300 feet of tile from 

 the different springs to supplement the water supply. These improve- 

 ments will increase the output from this station fifty per cent. 



A new pipeline has been purchased for the Libby station to insure 

 a better water supply. A new settling tank has been installed in the 

 water line at the Somers sattion which eliminates much of the silt which 

 formerly came down into the hatching troughs. Plans have been made 

 to install a new settling tank in the water line at the Poison station, 

 but to date this tank has not been built. Both the Somers and Poison 

 stations are particularly important because of their production of the 

 Kokanee or Sockeye salmon. 



Some improvements have been made at the McNeil pike hatchery 

 near Malta. The most important improvement is the heating device 

 which was installed around the water line which feeds the hatchery. 

 By using this device, the temperature of the water can be raised to the 

 point where the incubation period is shortened materially. This increases 

 the percentage of the hatch and insures a stronger and better fish. About 

 1,250,000 pike eggs were hatched at McNeil in 1947, and the resulting 

 fry were planted in reservoirs in various parts of the state with the 

 hope that good pike fishing may be had where little or no fishing was 

 enjoyed before. 



Engineering data together with plans and specifications have been 

 completed for new refrigerated storage buildings of thirty-ton capacity 



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