Where in the movie Lord of the Rings is the Pinncales?

The part in The Return of the King where, Aragorn, Legolas and Gimli ride to meet the Army of the Dead. Also Weed-free fodder was fed to horses that were there before they were filmed at the Pinnacles. The risk of introducing weeds was very large, so the condition was that the horses were required to be fed fodder that couldn't regrow and that didn't have seed. The producers also promised that the horses came from gorse and broom-free stables. After the horses had been walked through the reserve their hoof prints were raked over to avoid any impact on the ground.

The entrance to The Paths of the Dead, Lord of the Rings

The Paths of the Dead, Lord of the Rings