Just had an awesome evening on the pohopoco below beltsville. There was a good hatch of BWO's and a lot of little yellow stoneflies. Caught a trifecta of trout 4 rainbows, a brookie and a brown all on flies I tied. 2 rainbows on an olive CDC emerger and the rest on a spinner olive pattern. That creek is definetly doing well this year. Talked to a guy who lives right up the road and he says its been fishing good all summer. ( don't know how credible he is because he was calling the little yellow stones, sulphurs. But anyway trout were rising all over and the water was cold. Good to see in mid August.