Northeast
Gunpowder Falls
Live Conditions
Gunpowder Falls — Near Parkton — 1.4 mi below Prettyboy Dam
Live Conditions
Gunpowder Falls — At Glencoe — lower catch-and-release section
7-Day Flow
→ Stable
24-Hr Pressure
29.57 inHg · → High/stable
Local Weather
Tough conditions — fish deep
Today
☁️Overcast
62° / 38°
Tomorrow
☁️Overcast
64° / 39°
Tue
🌫️Foggy
68° / 41°
Wed
🌫️Foggy
68° / 47°
Cold front incoming — go deep with nymphs, surface activity likely slow.
Weather by Open-Meteo · No API key · Updated every 30 min
What should I fish today?
⚡ AIAI-powered recommendation using today's live flow, temperature, and hatch data.
6.8
Time of Day
Using: 28.9 CFS · 51.8°F · BWOs and MIDGES. Brown trout spawning continues — RESPECT REDDS. Cold consistent tailwater.
What should I pack?
Rod, flies, tippet, and safety gear specific to today's Gunpowder Falls conditions.
🪰 Hatch Calendar
Gunpowder Falls · November · Late Fall
🟢 Active now at 51.8°F water
🟡 Approaching — within 5°F of trigger range
Select month
BWOs and MIDGES. Brown trout spawning continues — RESPECT REDDS. Cold consistent tailwater.
🟢 Active · 🟡 Approaching · ⚪ Seasonal only
River Map
About Gunpowder Falls
Maryland's premier tailwater trout fishery, flowing cold and clear for 7.2 miles below Prettyboy Reservoir through a steep-sided gorge in Baltimore County. The entire special management reach is renowned for large, selective wild brown trout keyed to complex hatches — Sulphurs, Tricos, Blue-Winged Olives, and Midges year-round. Tight wooded banks, consistent releases, and near-constant angling pressure have produced some of the most sophisticated fish on the East Coast.
Regulations
Prettyboy Dam downstream to Bluemount Road (7.2 miles): catch-and-release only, artificial flies and lures only, single barbless hook required. All trout must be immediately released. Open year-round. Below Bluemount Road: standard Maryland statewide trout regulations apply. CFS alone does not indicate fishability — check dam release schedules.
Learn More
Guides to help you fish Gunpowder Falls with more confidence.
Maryland Fishing Regulations for Fly Anglers
Maryland nontidal fishing license, the separate Trout Stamp required statewide, the last Saturday in March opener, the Gunpowder Falls 7.2-mile…
Trout Species of Maryland
MD's wild brown trout fishery — the famously selective Gunpowder Falls below Prettyboy, the Trophy Trout Savage tailwater, the North Branch Potomac…
How Barometric Pressure Affects Fishing (And How to Use It)
That gorgeous bluebird day after a cold front? Worst fishing of the year. Here's the data behind why pressure changes matter more than the weather…