54 
BULLETIN OF THE UNITED STATES FISH COMMISSION. 
knowing, whether they had seen any whitefish in Yellowstone River, but none had 
been seen and no one believes any are there. Every one inquired of is of the opinion 
that the whitefish fell a ready prey to the voracious native trout which abound in that 
stream. Their failure to thrive in Twin Lakes is probably due to the mineral char- 
acter and high temperature of the water. 
Upon the whole, the Commission is certainly to be congratulated upon the high 
degree of .success which has attended its efforts toward supplying valuable food-fish to 
these hitherto barren waters. 
Following is the detailed account of our investigations : 
Gardiner River. — This stream was stocked September 22, 1889, with 4,975 young 
brook trout. Our examinations were made on Indian Creek, at and above the mouth 
of Obsidian Creek, and along Obsidian Creek in Willow Park. We saw at least five 
trout near the mouth of Indian Creek, one of which was caught. This one was a foot 
in length, and the others seen were estimated to be at least 9 inches long. These 
streams were so rocky and the current so swift that it was not possible to use the 
seine to any advantage. In Winter Creek we saw two small trout, each perhaps G 
inches long or less. From these facts it is evident that the brook trout is thriving in 
these streams (all branches of the Gardiner River) and that the fish planted in 1889 
spawned in 1890, the small specimens seen being yearlings. I should add that the 
large specimen caught was full of spawn. 
Gibbon River. — This stream was 'stocked with 990 rainbow trout September 22, 
1889, the plant being made just above Virginia Cascade. We examined the stream 
for some distance both above and below the cascade. One trout (a male, 10} inches 
long) was taken about one-eighth of a mile above where the plant was made, and 
another male of the same size was taken about the same distance below the cascade. 
Four others of apparently the same size were seen above the cascade, and at least five 
others, equally large, below it. Owing to the nature of the stream, all of our fishing 
here had to be done with the fly. Other persons familiar with Gibbon River report 
seeing fish in it this year. 
Firehole River. — A plant of 995 Loch Leven trout was made September 22, 1889, 
in this stream above Keppler Cascade. We seined the river below the cascade, near 
Old Faithful Geyser, and caught one example, 3} inches long. We also fished with 
the fly for some distance along the stream above the cascade, and, though no specimens 
were secured, tho two small trout (not over 4 inches long) which rose to the fly are 
sufficient evidence that this plant has also proved successful. The fish of the plant 
certainly spawned last year, as the one specimen secured, as well as the others seen, 
are yearlings. 
Nez Perce Greek. . — On September 15, 1890, 9,300 Von Behr trout were placed in this 
creek. We examined the stream just above the 11 Soldiers’ Camp” near the Fountain 
Hotel, but were unable to find any fish. Lieut. Pitcher, who was stationed here, 
assures us, however, that fish have been seen in the stream this year. On October 9, 
of this year, Mr. Elwood Hofer saw trout in this creek. 
Shoshone and Lewis Lakes. — In August and September, 1890, there were placed in 
these lakes 6,700 Loch Leven and 42,025 lake trout. In the mouth of Heron Creek, 
at the north end of Shoshone Lake, I saw a great many young trout, apparently 5 to 6 
inches long. In one bnnch there were at least 50. One specimen was caught which 
proved to be a Loch Leven trout, oj inches long. We were not certain that we saw 
