The Upper section of the Colorado from Hot Sulphur Springs to Kremmling and the Williams Fork is not as big and mighty as stretches farther downstream. In comparison this section probably fishes better than the others and there are plenty of State Wildlife access areas and parking. In all the Upper Section of the Colorado River is a great example of a large and long Western-type fishing stream.
The Kemp and Breeze State Wildlife Areas (below Parshall) have excellent hatches and lots of large fish. Upstream (below Byers Canyon) the Lone Buck and Paul Gilbert SWA's are also very good spots to fish.
The Williams Folk tailwater provides year-round fly fishing. The section below the Williams Fork and Colorado River confluence is open most of the winter but cannot be drifted. Flows: 175-400 c.f.s. Most of the water below the Sunset BLM lease passes through private property. Fish the Gore Canyon area instead.
This section of the river contains Rainbow and Brown trout, Colorado River , a few brookies and cutthroats. The Colorado is fishable most of the year with the best hatches June to September with stoneflies hatching mid June. Run-off discoloration May to mid-June. The first two miles downstream from the confluence can have ice during December to February cold spells. Fish the Williams Fork almost all year with April-November above the Williams Fork/Colorado confluence) being the best time. With year-round fishing, good size fish and prolific hatches, this stretch of the Colorado is an excellent place to fish.
January through December
(NOTE: Fishing is good in this section year round except during the Spring run-off, and periods of ice.)