PROPAGATION AND DISTRIBUTION OF FOOD FISHES, 1921, 53 
YELLOWSTONE PARK (wyvo. ) SUBSTATION. 
The spawning season of the blackspotted trout in the Yellowstone 
Park involves portions of two fiscal years. At the beginning of the 
fiscal year 1921 there were on hand in the hatchery 850,000 eggs which 
had been collected in June, and this number, added to the total ob- 
tained in July, gave an aggregate collection of 6,430,400 for the sea- 
son. During the spring of 1921 the season was late, as at the Meadow 
Creek auxiliary station, and ice was still in Yellowstone Lake at the 
arrival of the spawning crews on June 10. The first eggs were taken 
at Fish Lake, near Soda Butte, on June 19, and at the close of the 
fiscal year the total egg collection numbered 1,747,500, of which 
829,600 were obtained from Fish Lake and the remainder at different 
points on Yellowstone Lake. All eggs taken during the year were of 
excellent quality. The usual limited numbers were assigned to va- 
rious State fish and game commissions, and smaller numbers were 
diverted for stocking the waters of the Glacier National Park. The 
remaining eggs were incubated at the lake hatchery, and fry to the 
number of 2,012,400 were distributed in Yellowstone Park waters, 
the park superintendent cooperating in the distribution. 
GLACIER PARK (MONT.) SUBSTATION. 
From the Glacier Park hatchery, which was in operation for a 
period extending from June 13 to September 17, 1921, there were 
distributed in park waters 2,035,000 fry and fingerling grayling, 
brook, rainbow, and blackspotted trout, with approximately 445,000 
grayling and rainbow-trout fry on hand at the close of the fiscal year. 
The rainbow trout were derived from the Madison Valley egg collec- 
tions and the blackspotted trout from the Yellowstone Park. For 
the grayling and the brook trout the bureau is indebted to the Mon- 
tana Fish and Game Commission, and grateful acknowledgment of 
this cooperative assistance is hereby made. As in the Yellowstone 
Park distributions, officers of the national park service rendered val- 
uable assistance in transporting the fish to suitable points for 
planting. 
LEADVILLE (COLO.) STATION. 
[CHARLES B. Grater, Superintendent. } 
The output of fry and fingerling fish from this station was smaller 
than usual because of certain conditions affecting the egg collections 
at two important sources. Low water at Turquoise Lake exposed 
the customary spawning beds of the trout, and attempts to take the 
fish by seines and fyke nets at other probable spawning points were 
not altogether successful. Similar conditions existed at Engelbrecht 
Lake, where further difficulties were experienced also in the matter 
of transportation. The aggregate total of brook-trout eggs obtained 
from the collecting fields occupied was 4,305,400. This station also 
handled 1,209,000 blackspotted-trout eggs transferred from the Yel- 
lowstone Park field, 130,000 rainbow-trout eggs from the stations in 
Wyoming and Utah, and 25,000 lake-trout eggs shipped from Mich- 
igan. 
The Leadville station has for a number of years been able to suc- 
cessfully operate field stations at a number of privately owned lakes 
