As a fly fishing guide I have to do my due diligence and get out on the rivers in all seasons, under all conditions, and on every stretch. I have worked the Cold River hard over the years, which I admit is not a bad way to spend a day. A few days ago I surprised myself, finding a stretch I have never fished. It is .3 miles with continuous riffle, run and pool. With at least two pools having depths of 5-7 feet, which is extraordinary for July. Yellow stimulator dry flies, muddlers and wooly buggers worked well in bringing 11 fish (rainbows and browns) to hand. Others were lost and still others were seen flashing or rising to flies. Of course overcast skies after several days of sunny weather aided in success that day. Not a bad way to spend a July evening.
I went out water testing with another member of the Cold River Local Advisory Committee this morning and here is report from that data and from overall observations from spending time on the river recently.
Temperature: Ranged from 63.8 in Aworth to 66.2 in Alstead.
pH: An average of 6.5
Dissolved Oxygen: 9-9.3 mg/L
Turbidity(clarity): Ranged from .47 in Acworth to .6 in Alstead.
Flow: 35 Cubic Feet per Second in Alstead
Hatches have been light with little yellow sallies being the most prevalent, although the shoreline is loaded with large stonefly castings as well.
Mitch Harrison's parents gave him his first fly rod at age 12 and almost 40 years later he is still casting, teaching and learning. Another passion of Mitch's is bird watching. Mitch is a licensed NH guide and a science educator in Alstead, NH.