After conducting research, it appears that South 1500 Road Vernon County boat ramp is located at the intersection of South 1500 Road and East 1200 Road in Vernon County, Missouri. The coordinates provided (latitude: 37.94905472, longitude: -94.35527802) match this location.

The boat ramp is reportedly operated by the Missouri Department of Conservation and is a concrete ramp with a moderate slope. It is wide enough to accommodate two boats launching at the same time. The ramp appears to be regularly maintained and in good condition.

The boat ramp services the nearby 7,800-acre Harry S. Truman Reservoir, which is a popular destination for fishing and recreational boating. The reservoir is located in both Benton and St. Clair counties in Missouri and was created by the construction of the Harry S. Truman Dam on the Osage River.

According to the Missouri Department of Conservation, a variety of watercraft are permitted on the Harry S. Truman Reservoir, including boats with motors, sailboats, kayaks, and canoes. However, there are certain restrictions on the size and horsepower of motorized boats, and all vessels must comply with Missouri boating regulations.

In summary, the South 1500 Road Vernon County boat ramp appears to be a well-maintained concrete ramp that services the Harry S. Truman Reservoir in Missouri. It is wide enough for two boats and allows various types of watercraft, subject to certain restrictions.