POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA
POTOMAC RIVER MD USGS
POTOMAC RIVER NEAR WASH, DC LITTLE FALLS PUMP STA (01646500) is a real-time streamflow monitoring station on the POTOMAC RIVER in MD, operated by the U.S. Geological Survey. Riverbot tracks its streamflow and alerts anglers the moment flow and temperature hit their fishing window. 43 fish species are associated with this station in public fish records.
- USGS site number
- 01646500
- Agency
- USGS
- State
- MD
- Coordinates
- 38.9498, -77.1276
Live conditions & history
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Fish recorded near this station
Community observations nearbyPotomac River Near WASH, DC Little Falls Pump Sta has 43 fish species documented via iNaturalist research-grade observations within 10 km. These community-sourced records indicate fish presence in the vicinity.
Species include: Hickory Shad (Alosa mediocris), Alewife (Alosa pseudoharengus), American Shad (Alosa sapidissima), Yellow Bullhead (Ameiurus natalis), American Eel (Anguilla rostrata), and 38 others.
- Hickory Shad Alosa mediocris
- Alewife Alosa pseudoharengus
- American Shad Alosa sapidissima
- Yellow Bullhead Ameiurus natalis
- American Eel Anguilla rostrata
- Central Stoneroller Campostoma anomalum
- Goldfish Carassius auratus non-native
- Quillback Carpiodes cyprinus
- White Sucker Catostomus commersonii
- Rosyside Dace Clinostomus funduloides
- Grass Carp Ctenopharyngodon idella non-native
- Spotfin Shiner Cyprinella spiloptera
- European Carp Cyprinus carpio non-native
- American Gizzard Shad Dorosoma cepedianum
- Silverjaw Minnow Ericymba buccata
- Greenside Darter Etheostoma blennioides
- Rainbow Darter Etheostoma caeruleum
- Fantail Darter Etheostoma flabellare
- Northern Tessellated Darter Etheostoma olmstedi
- Mummichog Fundulus heteroclitus
- Southern Mummichog Fundulus heteroclitus heteroclitus
- Eastern Mosquitofish Gambusia holbrooki
- Blue Catfish Ictalurus furcatus
- Channel Catfish Ictalurus punctatus
- Common Sunfishes Lepomis
- Redbreast Sunfish Lepomis auritus
- Green Sunfish Lepomis cyanellus
- Pumpkinseed Lepomis gibbosus
- Bluegill Lepomis macrochirus
- Smallmouth Bass Micropterus dolomieu
- Largemouth Bass Micropterus nigricans
- Swallowtail Shiner Miniellus procne
- White Perch Morone americana
- Striped Bass Morone saxatilis
- Shorthead Redhorse Moxostoma macrolepidotum
- Rosyface Shiner Notropis rubellus
- Bluntnose Minnow Pimephales notatus
- Flathead Catfish Pylodictis olivaris
- Eastern Blacknose Dace Rhinichthys atratulus
- Longnose Dace Rhinichthys cataractae
- Creek Chub Semotilus atromaculatus
- Fallfish Semotilus corporalis
- Three Spot Gourami Trichopodus trichopterus
3 species above are flagged non-native or potentially invasive (Goldfish, Grass Carp, European Carp). Records show what has been observed near this station, not what is native to the watershed.
Where these records come from
- Evidence
- Community observations nearby
- Research-grade community observations (iNaturalist) recorded near this station, not a formal survey.
- Records
- 43 species
- from 200 individual records
- Observed
- Aug 10, 2025 – Jul 19, 2026
- 200 dated records
Sources
- iNaturalist research-grade fish observations — 200 records