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This massive rock formation is the main attraction, but the 327,415-acre park surrounding it also features thousand-foot-tall mineral domes, exotic desert flora and fauna, and panels of ancient rock art. Use these five clues to help you guess the name of the park that contains this signature sandstone feature.

5.8
Distance, in miles, of the trail that rings the rock monolith (it's one of the park's most popular treks). Another 4.6-mile path leads to a viewpoint overlooking 36 steep-sided rock domes–the tallest of them towering almost 1,800 feet above the valley floor.

38
Percent of visitors who attempt the mile-long trail up the rock, despite the park's request that no one climb it (climbing is not expressly outlawed). "The climb" is both sacred to the area's indigenous population and risky; more than 35 people have died, due to steep terrain, high winds, and extreme heat.

73
Number of reptile species that call the park home, including skinks, pythons, and geckos

1,142
Distance, in feet, that the formation rises from the ground. Its color comes mostly from the weathering–i.e., rusting–of the iron minerals in the rock.

29
Summit wind speed, in mph, at which rangers close "the climb." They also shutter the route when the forecast calls for temps above 96°F, when more than 20 percent of the rock surface is wet, or if there's a five percent or greater chance of thunderstorms.