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After conducting some research, it appears that there is no Lost Cove Boat Ramp in California with the provided latitude and longitude coordinates. Therefore, it is not possible to provide accurate information about the kind of boat ramp it is, its width, the body of water it services, and the permitted craft.

It is important to ensure the accuracy of location coordinates before conducting any research or providing information about a specific location. This can be done through the use of reliable mapping tools or by consulting with local authorities or organizations responsible for managing the location.