Esopus Creek (click for gauge report)

Esopus Creek is a 65.4-mile-long tributary of the Hudson River that drains the east-central Catskill Mountains near Phoenicia, NY. From its source at Winnisook Lake on the slopes of Slide Mountain, the Catskills' highest peak, it flows across Ulster County to the Hudson at Saugerties. Midway along its length, it is impounded at Olive Bridge to create Ashokan Reservoir, the first of several built in the Catskills as part of New York City's water supply system. Its own flow is supplemented 13 miles (21 km) above the reservoir by the Shandaken Tunnel, which carries water from the city's Schoharie Reservoir into the creek.

Beaverkill River (click for gauge report)

The Beaver Kill, is a tributary of the East Branch Delaware River, a main tributary of the Delaware River, approximately 44 miles long, in the U.S. state of New York. The kill drains a 300-square-mile (780 km2)[1] area of the Catskill Mountains and has long been celebrated as one of the most famous trout streams in the United States. Its preservation helped establish many of the basic conservation principles of rivers in the United States.

Willomemoc River (click for gauge report)

The Willowemoc is 27 miles (43 km) long,[2] and flows almost directly west from a few miles due north of the hamlet of Willowemoc, through Livingston Manor to Roscoe, where it joins the Beaver Kill at the Junction Pool, noted for trout fishing. It has many tributaries that flow into it from both the north and south.

West Branch of the Delaware (click for gauge report)

The West Branch Delaware River is one of two branches that form the Delaware River. It is approximately 90 mi (144 km) long, and flows through the U.S. states of New York and Pennsylvania, near Deposit, NY. At Deposit, on the border between Broome and Delaware counties, it turns sharply to the southeast and is paralleled by New York State Route 17. It joins the East Branch at Hancock to form the Delaware. For the lower 6 mi (10 km) it forms part of the boundary between New York and Pennsylvania.

East Branch of the Delaware (click for gauge report)

The East Branch Delaware River is one of two branches that form the Delaware River. It is approximately 75 mi (121 km) long, and flows through the U.S. state of New York. It winds through a mountainous area on the southwestern edge of Catskill Park in the Catskill Mountains for most of its course, before joining the West Branch along the northeast border of Pennsylvania with New York. Much of it is paralleled by State Route 30.