Flows/Hatches


Deerfield River @ West Deerfield

Massachusetts Stream Flows

Eastern Hatch Chart Courtesy of Walt Geryk @ Speydoctor.com

March 1 to May 30
16,18
Little Black Caddis
March 15 to April 15
12,14
Quill Gordon
March 1 to October 30
16,18,20,22,4,26
Midge
April 1 to May 15
18,20
Blue Winged Olive
April 1 to May 15
14,16
Hendrickson
April 15 to May 15
16,18,20
Little Mahogany
May 1 to May 30
14,16
Large Sulfur
May 1 to June 15
10,12
March Brown
May 15 to May 30
12,14
Gray Fox
May 15 to May 30
16,18,20
Little Sulfur
May 15 to June 15
8,10
Eastern Green Drake
May 15 to July 15
10,12
Eastern Gray Drake
May 15 to July 31
14,16
Light Cahill
May 15 to September 15
12,14
Little Yellow Stonefly
June 1 to July 15
12,14
Yellow Drake
June 1 to July 15
6,8
Hexagenia
June 1 to July 15
8,10
Brown Drake
June 1 to July 15
18,20
Blue Winged Olive
June 1 to August 15
12,14
Isonychia
June 1 to October 15
4,6,8,10
Terrestrials, Big ‘N Uglies
July 1 to July 15
8
Golden Drake
July 1 to August 15
16,18
Slate Winged Olive
July 1 to September 30
22,24
Trico
August 1 to August 31
12,14,16
White Mayfly
August 1 to September 30
22,24
Tiny Blue Winged Olive
September 1 to Sept 30
18,20
Blue Winged Olive