Based on the latest information available, the Y. Rock Creek River Access boat ramp is located in California and has a latitude of 41.515507 and a longitude of -123.529241.

This boat ramp is designed for small to medium-sized watercraft and is situated on the banks of the Klamath River. It is a dirt and gravel boat ramp that provides access to the water for a variety of watercraft, including kayaks, canoes, and small motorized boats.

The ramp is approximately 10 feet wide, which should be sufficient for most watercraft. There is also a small parking area available for vehicles and trailers.

The Y. Rock Creek River Access boat ramp is operated by the United States Forest Service, and there are no fees associated with its use. However, visitors should be aware that there are limited facilities available at this location, so it is recommended that they bring their own supplies and equipment.

Overall, the Y. Rock Creek River Access boat ramp is a great option for those looking to enjoy the natural beauty of northern California by taking to the water in a small boat or kayak.