After conducting research, it appears that there is no boat ramp named National Forest Development Road 714 in Naches, Washington. A search for boat ramps in the Naches area did not yield any results with this name or coordinates provided. Therefore, it is not possible to discuss the characteristics of this boat ramp or the body of water it services.

It is important to verify the accuracy of information before presenting it as fact. This can be done through various means such as checking official government websites or contacting local authorities. In this case, if there was a boat ramp with this name and location, the information could have been found on the website of the National Forest Service or the Washington State Parks and Recreation Commission.