Based on the latest available information, the Niles Road 38 boat ramp in Presque Isle, Maine is a concrete ramp with a single lane. It is approximately 15 feet wide and has a gentle slope, making it suitable for small to medium-sized watercraft. The ramp provides access to the Aroostook River, which runs through the town of Presque Isle.

According to the Maine Department of Inland Fisheries and Wildlife, the Aroostook River is classified as a class B river, which means that it is suitable for recreational activities such as fishing, boating, and swimming. The river is approximately 110 miles long and flows through northern Maine and into New Brunswick, Canada.

The Niles Road 38 boat ramp is open to the public and allows for the launching of various types of watercraft, including canoes, kayaks, and small motorboats. However, it is important to note that all boats must comply with Maine state laws and regulations regarding boating safety and equipment requirements.

In summary, the Niles Road 38 boat ramp in Presque Isle, Maine is a concrete ramp that provides access to the Aroostook River. It is suitable for small to medium-sized watercraft and allows for recreational activities such as fishing and boating.