Boulder River Report – 04/22/19
As with the Stillwater, flows on the Boulder bumped up and ran off color with the localized heavy rains. It’s likely going to continue to fluctuate in reaction to rain and temperature patterns. The forks will kick in off color water, so flows will be clearer, but swift, up above Natural Bridge. The cooler, rainy and overcast days are perfect conditions for BWOs. Standard beadhead mayfly nymphs like a hare’s ear, pheasant tail, or red copper john should get some action. Otherwsie, nymphing along the edges is probably the best bet with a rubber leg nymph pattern like a girdle bug or Pat’s rubber legs in black, brown or coffee color along with a beadhead trailer fly like a prince nymph, hare’s ear, batman or pheasant tail. Try a san juan worm as well. Look for Caddis to be coming off soon, and if the fish are on them, try a darker body size 14 for the dry fly and a size 14-16 green or olive pupa or emerger. Also try basic buggers in black and olive or the Grinch for streamers.