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Gunpowder Falls in Maryland

River53.7 mi
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Around here

Around Gunpowder Falls

10 mi

Source: USGS GNIS · Source: National Park Service. No claim to original U.S. Government works. · Public land: USGS PAD-US · Forest roads: USDA Forest Service MVUM · BLM routes and areas: Bureau of Land Management (simplified for web display)

About this river

Gunpowder Falls is a 53.7 mile river. Streamflow is measured at the USGS gauge Gunpowder Falls at Glencoe, MD (site 01582500). The National Hydrography Dataset places it at stream order 6. Reach geometry comes from the USGS National Hydrography Dataset.

Typical flow by month

1978 to 2026

Gunpowder Falls typically runs highest in April, at a median 222 cfs, and lowest in October, at 118 cfs. The highest flow on record for any single day is 5,290 cfs, in 2011.

Show the numbers
Typical flow by month at Gunpowder Falls at Glencoe, MD, in cfs
MonthTypical (cfs)Usual range (cfs)
January178117 to 268
February184123 to 275
March203136 to 310
April222147 to 323
May219153 to 302
June169129 to 232
July142110 to 198
August12990 to 187
September12383 to 191
October11883 to 197
November12793 to 195
December143103 to 230

Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 47 years of record. Statistics published by the US Geological Survey for Gunpowder Falls at Glencoe, MD (site 01582500). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.

Boat access nearby

2 mapped launches sit in the mapped area of Gunpowder Falls, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.

  • Loch Raven Fishing CenterLoch Raven ReservoirPublic
  • Prettyboy ReservoirGunpowder Falls - Prettyboy ReservoirPublic

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This river section as an art print, drawn over the real terrain with its miles, plus the trails, roads and peaks around it. Pick the colors and the size, and see the finished print before you buy. From $39, shipping included.

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