“It’s been 130 years since the Sacred Horn Society was back,” Bruised Head said after the pipes returned. “Now these hills will have a name so you can remember it — so when you drive by, these hills will have more meaning.”

The new name translates as Buffalo Spirit Hills, and drivers to Browning and Glacier National Park will pass it along the highway. Iinnii is a complex word in the Blackfeet language, meaning something that takes away hard things and gives good things in their place, the way in Blackfeet tradition the buffalo saved the starving people by giving them a resource to live off.

Its grasslands stun the imagination. Walk 10 minutes away from the headquarters building and over a few hills, and civilization vanishes. Not even a fence line can be seen for miles of rolling green, stretching seemingly all the way to the Rocky Mountain Front.

And across that prairie, for a lucky watcher, wild bison run with a thunderous noise that can be felt as well as heard. As quickly as they come they vanish in a fold of the earth, and the evening air refills with the creak of several kinds of tiny frogs in the ponds at the bottom of the hills.