No, buffalo are not native to Grand Canyon.

However, in 1906 Jim Owens and Charles Jones tried to breed buffalo bulls with cattle to produce “cattalo.” It was not a successful enterprise and buffalo still roam in House Rock Valley northeast of the park. When it gets warm in the valley the buffalo cross the invisible border up into the park onto the cooler Kaibab Plateau.

I’d never seen them before but hear the visitors talking about them and asking questions. Fellow blogger FabGrandma sees them regularly when she works at the park’s entrance gate.

In fact when I left for town yesterday, about one mile before the gate I encountered a “buffalo jam” where traffic was stopped off and on the roadway.

So what’s going on here?