St. Vrain Drainage
St.Vrain
Updated 5/11/26. Middle St. Vrain flows at peaceful valley are at 25 cfs. Squirmy worm patterns, San Juan worms, cdc pheasant tails, Copper ribbed and Sparkle wing RS2, small pheasant tails, small Zebra Midge and Blue poison tung. Dry flies include Parachute Adams, small Elk/Deer hair caddis flies, Purple Haze, BWOs and Ext body BWOs as the days temps increase.