We're trying to plan a 25-50 mile hike for a group of 20-30 teenagers next summer. We're located in Richmond, VA and we're looking for something within a 5 hour drive (closer the better though). We want something challenging, but not terribly hard. The teens will be in relatively good shape, but are not avid hikers. Preferably it would have water sources along the way so we can refill waters easily. We're not sure how many days we'll be going for yet, but we'd probably want to target around 10 miles a day on average, so there would need to be frequent camping areas big enough to accommodate a large group. And finally, it would be nice if the hike crossed some public roads, so that cars can meet us to restock if needs be, take care of medical needs, etc.
The only potential hike I've found so far is Mt. Rogers -- https://www.hikingupward.com/JNF/MtR...ysonHighlands/
I know it's a tough ask, but any other good suggestions?