Based on the latest information available, the boat ramp named Dana Road in Petersham, Massachusetts is a relatively small boat ramp that provides access to the northern section of the Quabbin Reservoir. The ramp is approximately 12 feet wide and is suitable for small boats and personal watercraft. It is important to note that the Quabbin Reservoir is a drinking water supply for the Boston metropolitan area, and therefore there are certain restrictions and regulations in place to protect the quality of the water.

According to the Massachusetts Department of Conservation and Recreation, boats that are permitted on the Quabbin Reservoir must be inspected for invasive species, have a valid permit, and must adhere to certain speed limits and other regulations. In general, the types of boats that are allowed on the reservoir include canoes, kayaks, rowboats, sailboats under 20 feet in length, and motorboats with a maximum horsepower of 10. Larger motorboats and personal watercraft are not allowed.

Overall, the Dana Road boat ramp is a small but important access point for recreational boaters who wish to explore the northern section of the Quabbin Reservoir. As with any boating activity, it is important to be aware of the regulations and restrictions in place to ensure the safety of both the boaters and the environment.