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Slate Run, Pennsylvania Hatch Chart

Slate Run has a reputation as a fine and challenging fly fishing river.  Infamous hatches, named pools, and extraordinarily wary trout, make this a contender for toughest fly fishing on the planet.
Insect Size Begin End
Green Drake 12 May 1 June 15
Quill Gordon 14 April 1 May 15
Caddis  12-16 May 1 June 15
March Brown 12 May 1 May 31
Grasshoppers 10-14 July 5 October 5
Tricos 22-24 July 5 September 25
Hendrickson  12-14 April 1 May 15
Sulphur 16 May 1 May 31
Light Cahill 12  May 15 June 15
Grey Fox 12 May 15 June 15
BWO 16 May 15 June 15

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