The Fall River is a good bet, but be prepared for a fair bit of snow in the South County. Afternoon BWO and Midge hatches mixed with the tail end of this winters Little Black Stoneflies will be bringing fish up the surface. 6 1/2X and 7X will pay big dividends on the dry fly side, but also on the nymphs in that clear water.
Eggs, Mops, Perdigons, Jigs, 2 Bit Hookers and Tungsten Micro May’s are all great nymphs. For a complete day, and another way to approach the fish add some euro streamers and pine squirrel leeches to the mix.