EXPLORATIONS IN COLORADO AND UTAH. 
23 
clay comes cliiefly from the placer miniug above. The stream at Glenwood is broad 
and swift, while the bottom is full of large boulders so that it cau not be easily seined. 
Two large suckers (C. latipinnis) were taken here. It is said that these suckers in 
winter come here for the warmth of the Hot Springs. 
2. Sweetwater Lalces in Eagle County, Colo. — Some 25 miles above Glenwood are 
the Sweetwater Lakes, noted for trout. Several specimens of these trout were procured 
from tishermen. 
3. Tra])j)er'’s Lalie, in Garfield County, Colo. — This is a noted locality for trout fish- 
ing, in the mountains some 40 to 50 miles north of Glenwood. Several fine examples 
of these trout were procured from anglers. 
4. Eagle River. — This is a veiy clear, cold stream, fiowing into Grand River from 
the east. It is very well stocked with trout, large numbers being taken with the tly. 
At Gypsum, where our collections were made, the river is about 20 feet wide and 2 to 
4 feet deep. The bottom is rather smooth, but the water is too cold for seining. At 
this point, besides trout, are found Cottus, Fantosteus.^ and Agosia, the Cottas being 
excessively abundant. 
5. Roaring Foric of Grand River. — The Roaring Fork rises in the mountains, above 
Aspen, and enters the Grand from the south near Glenwood. It is very clear, but not 
very cold (temperature 07°). Its lower course is swift, its channel filled with boulders 
washed from the great moraine through which it breaks its way. It is about 2 rods 
wide and 2 to 4 feet deep. Seining is imjiossible. Suckers (C. lati])innis) and blob 
were taken here. The stream is said to be well stocked with trout. 
6. Gailon Greelc. — This is a small stream flowing into the Grand below Glenwood. 
Some trout from this stream were secured from a fisherman. 
7. Oxmnison River, at Gunnison, Col. — The Gunnison is the chief tributary of the 
Grand, entering it from the south at Grand Junction. The Gunnison rises on the 
west slope of the Main Divide. Its upiier course is largely quiet, flowing through 
mountain jiastures with willow-covered banks. Below Gunnison it cuts its way through 
the Black Canon, one of the deepest in Colorado. Above the canon the river is very 
clear and full of trout, but one other species {Agosia) going with it. Below the canon 
the water is warmer and less clear ; trout are scarce and suckers and round-tails 
become abundant. The river at Gunnison is swift, with gravelly or rocky bottom; 
some 3 rods wide and 2 to 4 feet deep. In the canon are many rapids and pools 6 to 
20 feet deep. 
8. Tomichi Greelc, near Gunnison. — This is a clear stream about 6 feet wide and 2 
to 20 inches deep, flowing iu many windings with little current and with grassy banks 
covered with small bushes. It is not so cold as the river (about 72°) ; its bottom has 
a good deal of black muck. White ranunculus and other water- weeds abound and 
the stream much resembles a New England trout brook. 
The Eastern brook trout {Salvelinus fontinalis) was successfully introduced into 
Tomichi Creek about 1883. Both this and the native trout were abundant in the 
upper course of the stream, but at Gunnison the waters are crowded with Agosia 
yarrowi and have no other fish. 
9. Rio Cimarron. — This stream flows into the Gunnison in the Black Canon. In 
the pastures above Cimarron station (2 miles above its mouth) it is a good trout stream. 
At Cimarron the stream is clear and swift with a bottom of gravel and small boulders 
