According to the latest information available, the boat ramp named Northeast 306th Court Marion County is located in Salt Springs, Florida. It is a concrete boat ramp that is approximately 25 feet wide and provides access to Lake George, which is a large freshwater lake in Florida. The lake is known for its fishing opportunities, and a variety of fish can be caught in its waters, including bass, bluegill, and catfish.

The boat ramp is suitable for a range of watercraft, including small fishing boats, canoes, kayaks, and jet skis. However, larger boats may have difficulty launching from this ramp due to its width. The ramp also has a parking area for vehicles and boat trailers, and there are no fees to use the ramp.

In summary, the Northeast 306th Court Marion County boat ramp is a concrete ramp that is approximately 25 feet wide, providing access to Lake George in Salt Springs, Florida. The ramp is suitable for small fishing boats, canoes, kayaks, and jet skis, and there are no fees to use it.