The Mon River Trail South Marion County boat ramp is located in West Virginia and is a public boat launch facility. It is a concrete boat ramp that provides access to the Monongahela River for boaters. The ramp is approximately 20 feet wide, making it suitable for most types of watercraft.

The body of water that the Mon River Trail South Marion County boat ramp services is the Monongahela River, which is a major river in the eastern United States. The river flows through Pennsylvania, West Virginia, and Ohio, before joining the Allegheny River to form the Ohio River.

According to the West Virginia Division of Natural Resources, the Mon River Trail South Marion County boat ramp is suitable for small boats, canoes, kayaks, and other non-motorized watercraft. However, larger boats with motors may also use the ramp, as long as they respect the posted speed limits and other rules.

In conclusion, the Mon River Trail South Marion County boat ramp is a public facility that provides access to the Monongahela River in West Virginia. It is suitable for most types of watercraft, including small boats, canoes, kayaks, and larger boats with motors, as long as they comply with the posted rules and regulations.