Ever heard of Sing Peak? It’s a mountain in California’s Yosemite National Park, and it honours the park’s Chinese immigrant past — and an amazing backcountry chef called Tie Sing. A park ranger at Yosemite did some digging and unearthed the hidden history of Sing and the immigrants who helped create the park we know today.

Image: The Mather Mountain Party in 1915 with backcountry cook Tie Sing. Also in attendance: the first director of the US National Park Service, Stephen Mather. Credit: Dr. Gilbert H. Grosvenor/National Geographic Creative