River Report
Report Bugs Weather Map River Rating: River Flow: 1300 cfsCurrent Temp: 54°F 
River Statistics:
»At Lyons
Current:   1300 cfs
6 Hrs Ago:   1260 cfs
12 Hrs Ago:   1120 cfs
24 Hrs Ago:   933 cfs
Gage Height:   6.57 ft

Middle Saint Vrain at Peaceful Valley
Current:   112 cfs
6 Hrs Ago:   110 cfs
12 Hrs Ago:   104 cfs
24 Hrs Ago:   113 cfs
Gage Height:   3.77 ft

South Saint Vrain by Ward
Current:   45 cfs
6 Hrs Ago:   46 cfs
12 Hrs Ago:   45 cfs
24 Hrs Ago:   45 cfs
Gage Height:   2.08 ft

River flows are changing daily on the St. Vrain, calling the shop ahead of time is a good way to prepare yourself for what your walking into. On colder streaks of weather the fishing can be great as the clarity improves and fishing does accordingly. BWO's, caddis and midges are all doing well. Dry droppers and short leash nymph rigs will do well. Stones, leeches, worms and attractor nymphs on point with smaller BWO and midge patterns dropped off are a really good way to spend the day on the Vrain. As runoff nears, both the north and south braids of the St. Vrain down toward Lyons have continued to run a bit higher and more off-color in comparison with other nearby waters. Dry droppers will produce in these canyon sections, with fish looking up at attractor dries such as stimulators and chubbies, but throwing a nymph rig with a heavy attractor like a leech, stonefly, or two-bit hooker on point can be a great way to pick up more numbers (and sometimes bigger fish) in the slower, deep boulder pools and walking-paced runs. On cloudier days, don't be shy of stripping a small streamer through these holding zones, as well. The North St. Vrain at Wild Basin is open and fishing, but expect much skinnier water and accordingly spookier fish up here. A short dry dropper with a #16-18 caddis or small attractor dun trailing a #18 baetis nymph on about 12-14" of 6x would be my setup of choice right now in the Wild Basin.

Report Updated On: 05/14/2017
  Last updated 1:15 AM MST - Powered by USGS Water Services  
The Ultimate Fly Fishing Report
Casting a fly in a tranquil mountain stream, feeling the tug on the line, and holding a beautiful rainbow trout makes us feel alive and intensely connected with nature. Fly fishing is our way of life and we are blessed with hundreds of nearby rivers and streams just a short distance away from Boulder. From the swift spring waters of the Clear Creek to the meandering bends of the South Platte, it's critical to consider fishing conditions in advance and prepare accordingly. We rely on our experienced guides who venture into the wild to let us know which rivers favor fly fishing, where fish are biting, and which fly patterns are most effective. Planning a successful fishing trip also requires knowledge of stream flows at various river points and an accurate weather forecast for a given destination. At Rocky Mountain Anglers, we are dedicated to providing all avid anglers with detailed and timely information about hatches, water, and weather conditions. So before you head out the door on your next fishing adventure, visit our web site to find valuable information that will prepare you for a successful trip. Have fun chasing after your next trophy trout and enjoy nature's beauty!The Rocky Mountain Anglers Crew
If you have an update regarding a river's fishing conditions, feel free to email us at