From the website:

Gateway National offers you the rare opportunity to return to the rich traditions of the game. Rolling links, separated by gentle mounds, meander through lush, green pasturelands. Tall grasses, lakes, wood-tie bunkers, and occasional giant cottonwoods complete the landscape. In view of the magnificent Gateway Arch, you will cross occasional stone bridges, glide on raised boardwalks through quiet wetlands, and enjoy play on the only public course, bent grass fairways within hundreds of miles. Laid out through native grasses, it's easy to forget you are just minutes away from the action in downtown St. Louis, and not tucked away deep in the Scottish Highlands.