Ramapo River near Mahwah NJ
Ramapo River NJ USGS
Ramapo River near Mahwah NJ (01387500) is a real-time streamflow monitoring station on the Ramapo River in NJ, operated by the U.S. Geological Survey. Riverbot tracks its streamflow and alerts anglers the moment flow and temperature hit their fishing window. 31 fish species are associated with this station in public fish records.
- USGS site number
- 01387500
- Agency
- USGS
- State
- NJ
- Coordinates
- 41.0981, -74.1628
Live conditions & history
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Fish recorded near this station
Community observations nearbyRamapo River near Mahwah NJ has 31 fish species documented via iNaturalist research-grade observations within 10 km. These community-sourced records indicate fish presence in the vicinity.
Species include: Yellow Bullhead (Ameiurus natalis), American Eel (Anguilla rostrata), White Sucker (Catostomus commersonii), European Carp (Cyprinus carpio), Amur Carp (Cyprinus rubrofuscus), and 26 others.
- Yellow Bullhead Ameiurus natalis
- American Eel Anguilla rostrata
- White Sucker Catostomus commersonii
- European Carp Cyprinus carpio non-native
- Amur Carp Cyprinus rubrofuscus
- Eastern Creek Chubsucker Erimyzon oblongus
- Redfin Pickerel Esox americanus americanus
- Chain Pickerel Esox niger
- Northern Tessellated Darter Etheostoma olmstedi
- Western Mosquitofish Gambusia affinis
- Eastern Mosquitofish Gambusia holbrooki
- Channel Catfish Ictalurus punctatus
- Common Sunfishes Lepomis
- Redbreast Sunfish Lepomis auritus
- Green Sunfish Lepomis cyanellus
- Pumpkinseed Lepomis gibbosus
- Pumpkinseed × Green Sunfish Lepomis gibbosus × cyanellus
- Bluegill Lepomis macrochirus
- Greengill Sunfish Lepomis macrochirus × cyanellus
- Largemouth Bass Micropterus nigricans
- White Perch Morone americana
- Golden Shiner Notemigonus crysoleucas
- Rainbow Trout Oncorhynchus mykiss
- Yellow Perch Perca flavescens
- Black Crappie Pomoxis nigromaculatus
- Eastern Blacknose Dace Rhinichthys atratulus
- Longnose Dace Rhinichthys cataractae
- Brown Trout Salmo trutta
- Brook Trout Salvelinus fontinalis
- Creek Chub Semotilus atromaculatus
- Fallfish Semotilus corporalis
One species above is flagged non-native or potentially invasive (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
- 31 species
- from 144 individual records
- Observed
- Nov 27, 2010 – Jul 8, 2026
- 144 dated records
Sources
- iNaturalist research-grade fish observations — 144 records
🪰 Hatch Calendar
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A month-by-month hatch calendar for this river — which insects are emerging now, hook sizes, and patterns to fish — collected from fly shops and guides who know it.