According to the latest information available, the boat ramp named Sierra Drive in Tulare County, California is a concrete ramp that provides access to the Kaweah River. It is approximately 12 feet wide and is suitable for small boats, canoes, and kayaks. The ramp is located near Three Rivers and is a popular access point for recreational activities such as fishing, boating, and swimming.

The Kaweah River is a popular destination for whitewater rafting and kayaking, but due to the nature of the rapids, only experienced paddlers are recommended to venture out on the river. It is important for boaters to be aware of the water levels and conditions before heading out on the river.

In summary, the Sierra Drive boat ramp in Tulare County, California is a concrete ramp that provides access to the Kaweah River. It is suitable for small boats, canoes, and kayaks and is located near Three Rivers. Boaters should be aware of the water levels and conditions before heading out on the river.