The Ramapo River is a tributary of the Pompton River, approximately 30 mi (48 km) long, in southern New York and northern New Jersey in the United States. [1] The Ramapo River rises in Round Lake, a small freshwater lake in the Town of Monroe, New York, in a mountainous area of central Orange County, New York.

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2025年1月25日 · Monitoring location 01387500 is associated with a Stream in Bergen County, New Jersey. Current conditions of Discharge and Gage height are available. Water data back to 1902 are available online.

2025年1月24日 · Thank you for visiting a National Oceanic and Atmospheric Administration (NOAA) website. The link you have selected will take you to a non-U.S. Government website for additional information.

Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide. Available data for this site. Datum of gage: 253.10 feet above NGVD29.

This report describes the hydrology of the New Jersey part of the basin and evaluates the feasibility of developing large ground-water supplies from the stratified drift in the Ramapo River valley by inducing recharge to the aquifer from the river.

The primary advocate for the preservation and protection of whitewater rivers throughout the United States and connects the interests of human-powered recreational river users with ecological and science-based data to achieve goals within our mission.

This river/stream site, maintained by the NJ Department of Environmental Protection (identifier 21NJDEP1), has the name "RAMAPO RIVER NEAR MAHWAH" and has the identifier 21NJDEP1-01387500. This site is in the watershed defined by the 8 digit Hydrologic Unit Code (HUC) 02030103.

Major tributaries: Ramapo River, Hackensack River. Major lakes: Greenwood Lake, DeForest Lake. Highest Point: Harriman Observatory (1,430 ft). Area: 211 square miles in New York state.

The Ramapo River is stocked annually with over 3,000 brown trout and 2,000 rainbow trout. This river has many different access locations that provides great angling opportunities. Special regulations apply. See Fishing Regulations Guide.