52 PISH AND GAME COMMISSION. 



of June and does not start flowing- until the folloAving spring. We 

 installed a permanent trap some years ago. about one-half mile from 

 the mouth, but the majority of the tish would find spawning beds in 

 the sand below the trap. During an extremely heavy flood a few 

 years ago, the permanent trap was wrecked. Since then, temporarj^ 

 traps and racks have been used. A number of plans have been made 

 to successfully catch the fisli in this creek and thus save their eggs, 

 but the best the crews have been able to do was to place a rack in the 

 most favorable place in the old cliannel and as soon as the spring rains 

 began to melt the snow and the creek reached the flood stage, and to 

 drive the flsh back and pick them up wherever possible with dip nets. 

 Tlie hatchery crew, assisted by the game wardens, put in several 

 strenuous days during the spring of 1926 in catching up and saving 

 hundreds of trout that would have perished when the water receded. 

 Thus a large number of eggs were collected that otherwise would have 

 been wasted. 



Fig. 8. Wawona Hatchery, output of which is used in stocking lakes and 

 streams to the southward of Yosemite Valley. Photograph by G. C. Tabler. 



METCALF, PAPOOSE, KIDD, NORTH AND KEYSTONE CREEKS. 



These creeks are all tributary to Bear Lake and all except Metcalf 

 Creek dry up except for a few inches of water that flows in North 

 Creek and Kidd Creek during the summer months. They are all 

 short streams and flow during the spring months when the spring 

 rains are melting the snow or during the rainy spells in the spring 

 months. There is a deposit of granitic sand at the mouths of all 

 these streams and it is very difficult to operate the traps as the fluctu- 

 ating level of the lake changes the mouths of these creeks. For 

 tlie last two seasons the surface of the lake has been approximately 

 twenty feet below the crest of the dam. When a condition such as 

 this exists, it is very difficult to keep the mouths of the streams open 

 for the passage of the fish to the traps. Despite all these difficulies 

 we have maintained a large number of trout in this lake by following 

 the plan of planting the fish in the manner described above. A great 



