62 U. S. BUREAU OF FISHERIES. 



It is interesting to note that the collection obtained from Turquoise 

 Lake was the largest ever made at that point. In addition to the 

 brook-trout eggs obtained from this lake 37,000 eggs of the Loch 

 Leven trout were secured. Transfers from other stations of the 

 bureau to the Leadville hatchery included upward of 80,000 rainbow- 

 trout eggs from Saratoga, Wyo., 200,000 black-spotted-trout eggs 

 from the Yellowstone Park, and 50,000 lake-trout eggs from the Du- 

 luth station. The rainbow trout were used largely for stocking a lake 

 in Jefferson County, Colo., where there are excellent prospects of 

 developing a profitable field station, and 25,000 of the lake trout 

 were delivered to an applicant in Pitkin County, Colo. The re- 

 mainder of the fish entered into the general distribution in Colorado 

 and New Mexico, or were included in the stock — some 2,500,000 — ^re- 

 maining on hand at the close of the year. 



YELLOWSTONE NATIONAL PARK (WYO.) SUBSTATION. 



This station was operated during the year under the direction 

 of the superintendent of the Leadville (Colo.) hatchery. The fish- 

 cultural work, which involves a portion of two fiscal years, opened 

 at Fish Lake, near Soda Butte, on June 8, and the collections of 

 black-spotted-trout eggs at this point to the close of the year 

 amounted to 263,500. Late in the season of the previous fiscal year 

 and during the season of 1922 a building of log construction was put 

 up for the bureau by employees of the National Park Service. As 

 this building was not available for use during the spawning period, 

 the eggs taken at Fish Lake were transferred to the Lake hatchery 

 for incubation. 



The spawning season of the black-spotted trout on Yellowstone 

 Lake began on June 9, and the results of the season's efforts, both 

 as to egg collections and the number of young fish returned to park 

 waters, were the most satisfactory in a long period of years. The 

 usual egg-collecting area was considerably augmented by extending 

 it to streams not previously occupied along the South Arm of Yel- 

 lowstone Lake, and, largely through the cooperation of officers of 

 the park service, the unusually large output of fry and fingerling 

 fish was disseminated over a much wider territory than ever before. 

 Through the courtesy of the Montana Fish and Game Commission 

 and by judicious exchanges of eggs, brook trout, rainbow trout, and 

 grayling, as well as the native black-spotted trout, were available 

 for distribution in suitable waters of the park. 



SARATOGA (WYO.) STATION. 

 [O. N. Baldwin, Superintendent.] 



A special appropriation provided by Congress and available July 

 1, 1922, permitted the erection of two cottages at the main station 

 for the convenience and comfort of the statutory employees. These 

 are of frame construction, with four rooms, bath, and cellar each. 

 Funds were also available from the same appropriation for some 

 development work at the field stations. It was therefore possible 

 to erect a log building 28 by 36 feet equipped with 20 standard 

 hatching troughs, and a cabin, also of logs, 20 by 26 feet, for the 

 accommodation of the employees in charge. These buildings are 



