The Mississippi River - McCartney Boat Launch is a public boat ramp located in Grant County, Wisconsin. It provides access to the Mississippi River, a major water body that flows through several states in the United States. The boat ramp is open year-round and is operated by the Wisconsin Department of Natural Resources.

The boat ramp is concrete and has a width of 30 feet, which can accommodate a variety of watercraft. The ramp has a gentle slope, making it easy for boaters to launch and retrieve their watercraft. Additionally, there are parking facilities nearby, which can accommodate up to 25 vehicles with trailers.

The Mississippi River - McCartney Boat Launch provides access to a wide range of water activities, including boating, fishing, and water sports. It is also a popular spot for anglers, as the Mississippi River is known for its abundant fish species such as walleye, bass, and catfish.

In terms of permitted craft on the water, the Mississippi River - McCartney Boat Launch has no specific restrictions. However, boaters are advised to check local regulations and adhere to safety guidelines to ensure a safe and enjoyable experience on the water.

The information provided is accurate as of the time of writing, but it is always recommended to verify the latest information with the relevant authorities or online resources before planning a trip to the Mississippi River - McCartney Boat Launch.