Where is “Hetechi” National Park?

On PBS Nat. Park film in the close of last night’s show, they showed a beautiful falls the announcer called Hetechi (sp?) Anybody know where it is?
I’ve looked too and I TIVO’d the show. I’ve listened many times to hear the pronuciation. Perhaps it’s the name of the falls in an unnamed park.

I’m not sure what film footage you’re talking about but it sounds to me like what you might have heard it “Hetch Hetchy” valley in Yosemite National Park. Are these the waterfalls you saw?
http://www.evergreenlodge.com/images/media/Hetch-Hetchy-Waterfalls.jpg

If they are, the one on the left is Tueeulala Falls and the one on the right is Wapama Falls. Wapama flows all year and is a relatively easy 5 mile roundtrip hike from the O’Shaughnessy Dam. John Muir died shortly after he lost his battle to preserve Hetch Hetchy valley. The dam provides water and power to San Francisco.