After conducting research, I was unable to find specific information about a boat ramp named Oswegatchie River in New York with the given latitude and longitude coordinates. However, there is a boat ramp located on the Oswegatchie River in Oxbow, New York.

Based on available information, the Oswegatchie River boat ramp appears to be a public boat ramp for recreational use. It is located in a rural area and provides access to the Oswegatchie River. The ramp is reportedly wide enough to accommodate larger boats, but specific dimensions could not be confirmed.

The Oswegatchie River is a popular destination for fishing and boating in upstate New York. It flows through the Adirondack Mountains and empties into the St. Lawrence River. According to New York State regulations, motorized boats are permitted on the Oswegatchie River as long as they comply with speed and noise restrictions. Non-motorized boats such as kayaks and canoes are also permitted on the river.

Overall, more specific information about the boat ramp named Oswegatchie River, including its exact location and dimensions, would be necessary to provide a more detailed description.