Gateway Arch National Park will be requiring masks starting today by order of the National Park Service

As a sign of the growing Covid threat this winter, the Gateway Arch National Park will be requiring masks starting today by order of the National Park Service.
All staff and visitors are required to wear a well-fitting, high-quality mask such as a surgical mask regardless of vaccination status. Cloth masks are not considered to be high-quality and are not allowed. Surgical masks will be available to visitors at the Information Desk free of charge.