Crowds impacting the visitor experience and fragile natural resources have Shenandoah National Park officials turning to a reservation system trial to control access to Old Rag.
Beginning in March, those who hope to use trails in the Old Rag area (Saddle, Ridge, and Ridge Access) from March through November will need a day-use ticket for the area. The year-long pilot is intended to help the park staff evaluate and possibly adapt to a permanent system in the future.
https://www.nationalparkstraveler.org/2022/01/shenandoah-latest-national-park-turning-reservations-control-crowds