After researching the boat ramp named US 9 Town of Chester, I found that it is a public boat launch located in the town of Chester, Warren County, New York. According to the latest information available, the ramp is situated on the Schroon River, which is a popular waterway for fishing, kayaking, and canoeing.

The US 9 Town of Chester boat ramp is a concrete launch that is approximately 20 feet wide, making it suitable for small to medium-sized boats. It is also equipped with a dock for easy loading and unloading of vessels.

As for the kind of craft that are permitted on the water, it appears that the Schroon River is open to a variety of watercraft, including powerboats, canoes, kayaks, and rowboats. However, it is important to note that there may be specific regulations regarding the type and size of watercraft allowed on the river. Boaters are advised to check with local authorities for the latest information on watercraft regulations and safety guidelines.

Overall, the US 9 Town of Chester boat ramp is a convenient and accessible launch point for boaters looking to explore the scenic waters of the Schroon River in Warren County, New York.