The project is called the "Mist Trail Corridor Rehabilitation."
That encompasses the Happy Isles area, Mist Trail and other iconic sights and access routes to Half Dome.
The park service says it's one of the most heavily visited areas each summer.
This project is intended to address safety concerns, congestion, visitor services and infrastructure.
A draft Environmental Assessment has been developed.
The public comment period is now open through July 13.
You can enter your submission online.