The Whitewater Boat Launch is located in Colorado and it is a concrete boat ramp that provides access to the Colorado River. It is wide enough to accommodate multiple boats at once. The latest information available indicates that it is 20 feet wide.

The body of water that the Whitewater Boat Launch services is the Colorado River. This river runs through several states and is a popular spot for recreational activities such as fishing, kayaking, and rafting.

As for the kind of craft that are permitted on the Colorado River at the Whitewater Boat Launch, it is open to motorized boats, kayaks, canoes, and paddleboards. However, it is important to note that there may be different regulations and restrictions in place depending on where on the river you are and the time of year.

In conclusion, the Whitewater Boat Launch is a concrete boat ramp located in Colorado that provides access to the Colorado River. It is 20 feet wide and is open to a variety of craft including motorized boats, kayaks, canoes, and paddleboards.