61.   On the drive along Bonita Canyon visitors will get a good idea of the crazy rock formations ahead on the Heart of Rocks loop.

62.   Others will make their way to Pedra Furado, an interesting surf-side rock formation with a large sunset-framing hole.

63.   Our goal was the striking cave rock formations known as the Miracle Bridges.

64.   Ornate rock formations wind upward toward a bright surface, then lure me down into a murky darkness.

65.   Participants camp at the base of Thunderbird Mesa in the Valley itself, riding out daily to explore the petroglyphs, mesas and other rock formations.

66.   Rock City became a tourism gold mine, with its gigantic rock formations and striking mountaintop views.

67.   Rock formations like drip castles.

68.   Rock climbing includes the necessity of crossing a Tyrolean bridge, a rope affair suspended at great height between two rock formations.

69.   Rock formations etched by centuries of moving water.

70.   Ruby-toned rock formations stagger like drunks but somehow stand, apparently having passed sobriety tests for eons.