Zion National Park is an area of huge rocks that were cut through by a river.
VOA: special.2009.04.15
On either side of the path are what look like river beds of big rocks.
VOA: special.2009.07.20
Lake sturgeon, he said, once populated the river thanks to rocks and boulders that created spots to lay eggs in well-oxygenated water that was safe from other predators.
The director, Curtis Hanson ("The River Wild, " "The Hand That Rocks the Cradle"), has done his film noir homework, yet his movie feels bright and new, as if he's piercing those long-ago Los Angeles nights with halogen headlights.