EXPLORATIONS IN COLORADO AND UTAH. 
3 
July 22. — At Cafion City ; seiuod Arkansas River and Grape Creek. 
July 23. — At Granite ; seined Lake Creek. 
July 24. — At Leadvillo ; seined Arkansas River. 
July 25, 26. — Went to Twin Lakes with Col. .lolin Gay and Mr. George R. Fisher; met Mr. Gordon 
Land; obtained specimens of tront of two varieties. 
July 27. — At Glenwood Springs ; seined Roaring Fork and Grand River. 
July 28, 29. — At Gunnison ; joined by Mr. Bert Fesler ; Evermann and Davis remain a day at Gypsum. 
July 30. — At Gunnison ; seined Gunnison River and Tomichi Creek. 
July 31.— At Cimarron ; seined Cimarron Creek. 
August 1, 2. — At Delta ; seined Gunnison and Uncompaligro Rivers. 
August 4, 5.— At Provo ; seined Provo River and, assisted by Peter Mads3n and his sous, drew a long 
net in Utah Lake. 
August 6, 7. — Salt Lake City ; seined Jordan River. 
August 9, 10. — At Juab ; seined Sevier River and Chicken Lake. 
August 11, 12. — At Green River (Blake City), Utah ; seined the river, assisted by Mr. J. F. Brown. 
August 13, 14. — At Ouray; examined Uncompabgre River. 
August 1.9, 16. — At Durango ; seined Rio do las Animas Pordidas and Rio Florida. 
August 17-19. — ^At Alamosa, Colo. ; Evermann and Fesler visit Del Norte, Colo. ; seined Rio Grande, Rio 
Conejos, and San Luis Lakes. 
August 20, 21. — At Manitou Springs. 
August 22. — At Ilartsel’s Hot Springs ; seined the South Platte. 
August 23. — At Denver ; seined the South Platte. 
August 2\. — At Boulder; seined Boulder Creek ; Fesler and Davis visit Morrison, seining Bear Creek. 
August 25. — Left Colorado, reaching Bloomington, Ind., August 27. 
COLOEADO. 
The State of Colorado is for the most part an elevated and arid region, traversed 
by ranges of lofty mountains extending north and south, one of them being the main 
divide of the continent, which is nowhere crossed by streams. 
In the eastern part of the State the mountains cease almost abruptly, and give place 
to the sage-plains, an elevated and nearly level region which slopes gradually eastward 
through Kansas and Nebraska to the Missouri Eiver. This region has in Colorado 
little rain-fall. Its vegetation is scanty, except along the streams, where the soil may 
be made very fertile by irrigation. In the central part of the State elevated and arid 
valleys rendered fertile by irrigation lie between the mountain chains. On the north 
slopes of mountains, especially northward, are considerable pine forests, while above 
the timber line are level grassy areas, mountain meadows, well watered and with a 
profusion of wild flowers. The mountain chains also sometimes inclose large flat green 
areas, many of them former lake beds, which have become filled with sediment and 
the debris of vegetation. These are known as parks, and in these the clear mountain 
streams pursue courses with interminable meanderings and with but slight current. 
In the western part of Colorado the great folds of the granite mountains give place 
largely to horizontal strata. Here erosion of water on a grand scale has filled this re- 
gion with gorges, the intervening rocks being left as mesas and buttes. In one case, 
the Grand Mesa stands at a height of nearly a mile above the Gunnison Eiver at 
Delta, the top of the mesa being reached by some seven or eight successive stairs, 
each representing a separate plane of erosion. 
In the northwestern part of Colorado are many clear lakes of glacial origin, but 
in the rest of the State the lakes are comparatively few. 
