According to the latest information available, the Mohawk-Hudson Bike-Hike Trail boat ramp in Niskayuna, New York is a concrete boat ramp. The width of the boat ramp is not specified. This boat ramp services the Mohawk River, which is a major waterway in upstate New York. The Mohawk River is over 149 miles long and flows from the Adirondack Mountains to the Hudson River. The boat ramp is suitable for small watercraft such as canoes, kayaks, and small motorized boats. It is important to note that regulations and restrictions may vary depending on the local authorities and specific conditions. It is recommended to check with the relevant authorities for the latest information on permitted craft and regulations before launching any watercraft from this boat ramp.