HOW THE TROUT CAME TO CALIFORNIA. 275 
Juan. In the beautiful streams of Western Colo- 
rado the trout have made themselves at home, 
and their abundance here is scarcely less than in 
their chosen haunts in Washington and Alaska. 
Already the sage-brush trail which leads to 
Trapper’s Lake and the cliffs along Eagle River is 
strewn with tin cans, newspapers, cigar stumps, 
and other debris of civilization. Splendid trout 
still lurk in the depths of the wild cafion “de las 
Animas Perdidas,” above Hermosa and Durango. 
The trout of the Colorado River! most resemble 
those of the Rio Grande, but they change a good 
deal with variations in surroundings. They show 
a tendency to orange rather than purple shades 
onthe fins, the spots are small and largely on the 
tail, and the scales are smaller than in most of the 
others. The sides show often a red lateral band 
more distinct than in any other form thus far 
mentioned. The cut-throat mark is still clear, as 
in all trout east of the Cascades and the Sierra 
Nevada. 
In the Arkansas basin, in a bend of the main 
divide, high above the river, lies a pair of glacial 
lakes, shut in by one moraine and separated by 
another. These are the Twin Lakes, beloved of 
anglers and famous for their magnificent mountain- 
setting. In these lakes are two kinds of trout, 
different in size, color, character of flesh, way of 
living, and choice of bait. Dr. Evermann and I 
visited the lake in 1889. We found but one kind, 
the ordinary Greenback Trout of the Arkansas, 
1 The trout of the Colorado Basin is Salmo mykiss pleuriticus 
Cope. 
