Gunpowder River Hatch Chart

Gunpowder Falls:  Located in Baltimore County, Gunpowder Falls is a premier trout fishery.  With controlled releases from the Prettyboy Reservoir, the Gunpowder maintains an excellent year-round flow.  The Gunpowder is among the few true trout rivers in the DC-MD-VA area offering a variety of water conditions from still water to riffles and rapids.  Chest waders are strongly recommended.

MonthFlySize
December-JanuaryWoolly Buggers
Streamers
Midges
8-10
8-10
18-26
FebruaryWoolly Buggers
Streamers
Little Black Stoneflies
Midges
8-10
8-10
14-18
20-26
MarchLittle Black Stoneflies
Wooly Buggers
Midges
x14-18
8-10
20-26
AprilHendrickson
Red Quill
Caddis
March Brown
Blue Quill
12-14
12-14
14-20
12-14
14-16
MayHendrickson
Red Quill
March Brown
Sulphur
Blue Winged Olive
Light Cahill
12-14
12-14
12-14
16-20
14-18
14-16
JuneSulphur
Light Cahill
Blue Winged Olive
Caddis
Ants/Beetles
18-20
12-16
20-22
14-20
10-14
JulySulphur
Caddis
Ants/Beetles
Blue Winged Olive
20-22
14-20
10-12
20-22
AugustCaddis
Ants/Beetles
Hoppers
Blue Winged Olive
16-20
12-16
10-14
20-22
SeptemberCaddis
Nymphs
Ants/Beetles
Hoppers
Woolly Buggers
Blue Winged Olive
16-20
14-18
12-14
8-12
8-10
20-22
OctoberCaddis
Woolly Buggers
Streamers
Ants/Beetles
16-20
8-10
8-10
8-12
November-DecemberBlue Winged Olive
Woolly Buggers
Streamers
20-22
8-10
8-10
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