The Rock Hill Striders put on a great ultra race called the Millstone 50k which is on 2/8 this year. This run is a preview of the course, which is a 10.5 mile loop. You don't need to plan on doing the race in order to enjoy the preview run.
If you can run a half marathon on the road, you should be able to complete this run. We will make sure no runner gets left behind.
Bring 3$ for a trail fee. Stop and pay fee at guard booth. Also bring whatever fuel and hydration you will need for this length unsupported run.
There are several entrances to the Greenway. Make sure you are going to the Rush Pavilion.