Saco River, New Hampshire, Class III-IV Swift River, New Hampshire, Class II-IV West River, Vermont, class II-III Westfield River, Massachusetts, Class I-IV Winhall River, Vermont, Class III New York Black River, Watertown - Class III-V Delaware River - Class I-II. Further down the river also has a few rapids as well that can swell to III in wet weather. Esopus Creek - Class II-IV Genesee River - Class II-III Grasse River - Upper section, Class IV - V Hudson River, North Creek - Foreign visitors should be advised and warned that the name should not fool them: it is true that the Hudson empties in the tidal estuary where New York City sits. However, this section is over 200 miles away from New York City in heavily forested wilderness; this water is placid only in sections farther south and requires hiking to reach the put in in some cases; not to be attempted in the mistaken and dangerous belief the water is anything like it is near Manhattan. Class IV-V. Suitable for kayakers intermediate and above. Middle Branch Oswegatchie River - Bryants Bridge and Sluice Falls sections, Class IV -V. Mongaup River - Class II-III; about Moose River, Old Forge - Class IV-V+ Niagara River (Whirlpool Rapids) - Class V+ Raquette River - Class III - IV+ Sacandaga River, Lake Luzerne- Class II-III Salmon River - Class I-III Ten Mile Creek - Class I-III; about Mid-Atlantic Lackawanna River, Pennsylvania, Class I-IV: a run Lehigh River, White Haven to Jim Thorpe, Pennsylvania - a run, through a gorge, Class III; in high water this is a Class 4 run. A very good choice for those learning to paddle when the water is at its normal level. Nescopeck Creek, Pennsylvania, Class II-III Patapsco River, Maryland, Class I-IV. A 31.5 mile (50.69 km) run Patuxent River, Maryland, Class I-IV. Potomac River, West Virginia/Maryland/Virginia, Class II-V+. This river begins in the Appalachian Mountains and runs to the sea, a distance of 367 miles (approx 591 km.) This river forms the border between Northern Virginia and the District of Columbia. There are two major whitewater sections. The first is close to Harpers Ferry, West Virginia, class III. The second section is V to V+ and includes the Great Falls of the Potomac, just from the center of Washington, D.C. Additionally, there are at least five major "forks" of the Potomac, with some reaching class III