Gunpowder Falls — Big Falls, Baltimore County, MD
Brown Trout fishing today
Great day to fish for Brown Trout.
74/100
Why today scores 74
- 50°F water — Inside Brown Trout's active range
- 7 mph wind — Light chop — baitfish active, fish willing to feed
Right now at Gunpowder Falls — Big Falls
- Water temp
- 50°F
- Air temp
- 77°F
- Wind
- 2 to 7 mph NW
- Tide phase
- incoming
- Sunrise / sunset
- 6:18 AM / 7:50 PM
- Moon
- first quarter, 33% illuminated
- Solunar windows today
- 12:50 AM - 1:50 AM · 4:40 AM - 6:40 AM · 9:50 AM - 10:50 AM · 5:10 PM - 7:10 PM
- Forecast
- Sunny
About Brown Trout
Salmo trutta. Naturally reproduces in the Gunpowder River tailwater (Loch Raven below Prettyboy) and several Western MD streams; also heavily stocked. Typically more wary than rainbows. Classic mayfly hatches on the Gunpowder — sulphurs, BWOs, caddis. Streamer-eaters after dark.
Preferred water temp: 45–68°F (ideal 55°F). Preferred tide: either.
MD regulations
- Daily creel limit
- 2
Daily creel 2 in aggregate across trout species; possession 4 in aggregate. No minimum size. Same Closure 1 March 8–28 pre-season rule applies. Many brown trout fisheries (Gunpowder below Prettyboy, Savage River tailwater) are Catch-and-Return only or have elevated minimum size — check water-specific regs. Trout stamp required.
Source: NTMD regulations. Last verified: 2026-04-22.