Jerusalem Mill Accesson Gunpowder Falls
Conditions right now
No USGS gauge is linked to this water yet, so we can't chart flows.
Active Blue-Winged Olive (BWO) hatches
- 01Active Blue-Winged Olive (BWO) hatches, especially mid-day on cloudy days.
- 02Consistent midge activity, providing a reliable food source for selective trout.
- 03Streamer fishing is effective for larger trout and smallmouth bass keying on baitfish and crayfish.
- 04Egg patterns are becoming relevant as some trout species begin fall spawning activities.
What to tie on at Jerusalem Mill Access
Picked from recent reports for this stretch.
Clouser Minnow (Bass)
A year-round staple for smallmouth bass, this pattern effectively imitates baitfish in clear water conditions.
Buy at AmazonBlue-Winged Olive Comparadun
Blue-Winged Olives are actively hatching in early spring, especially on overcast days, making this a prime dry fly for selective trout.
Hendrickson Nymph
Hendricksons are a key early spring mayfly hatch, with nymphs being active subsurface and a primary food source for trout.
Mother's Day Caddis
The prolific Mother's Day Caddis hatch is expected in late April through May, making this dry fly a perfect imitation for adult caddis.
Zebra Midge
Midges are a primary active insect year-round, and this pattern is highly effective for enticing finicky trout in colder spring water.
Buy at AmazonSan Juan Worm
Effective year-round, especially after recent rainfall or runoff events, mimicking aquatic worms washed into the system.
Buy at AmazonFlashback Pheasant Tail Nymph
An excellent general searching nymph for early spring, mimicking various active mayfly nymphs, including emerging BWOs.
Woolly Bugger (Black/Olive)
An essential streamer for enticing aggressive strikes from trout and smallmouth bass, imitating leeches and baitfish active in colder water.
Hopper Juan
Classic summer terrestrial, excellent for both trout and smallmouth bass feeding along grassy banks.
Buy at AmazonMaryland season by season
What changes on the water through the year, with the flies for each season.
Fly shops nearby
Local flies, current advice and guided trips.