BY EMERY COWAN
Coleen Kaska is a member of the Havasupai Tribe, whose village deep in the Grand Canyon depends on nearby springs and seeps as its sole source of water. Several of the springs also feed Havasu Creek, which runs through the village of Supai and forms the turquoise waterfalls that bring thousands of tourists to the Havasupai reservation each year, sustaining the tribe’s economy.