Based on the latest information available, Lower Cottonwood boat ramp is located in Oregon, specifically in Lake County, and can be found at latitude 42.25330734 and longitude -120.50714111.

This boat ramp is designed to accommodate small to medium-sized watercraft and is made of concrete. It has a width of approximately 12 feet, which makes it wide enough for small boats and other watercraft to be launched and retrieved easily.

The body of water that this boat ramp services is the Cottonwood Reservoir. The reservoir is known for its clear blue water and picturesque surroundings, making it a popular destination for recreational boaters, anglers, and swimmers.

As for the type of craft that are permitted on the water, the Oregon Department of Fish and Wildlife states that a variety of fish species can be found in Cottonwood Reservoir, including rainbow trout, brown trout, largemouth bass, and crappie. Anglers can fish from boats or from the shore, provided they have the necessary permits and licenses.

In conclusion, Lower Cottonwood boat ramp in Oregon is a concrete ramp that can accommodate small to medium-sized watercraft. It has a width of approximately 12 feet and services the Cottonwood Reservoir, which is home to various fish species and is a popular recreational destination.