Natural areas and historic sites in Arizona

This sandstone rock formation emerged through natural erosion over millions of years. Visitors need special authorization for access.

The park displays Spanish colonial architecture with mission buildings from the 18th century. The site documents Native American history.

This section of the canyon features sandstone formations and light effects. Visitor numbers are lower than in other areas.

A cave system with stalactites, stalagmites and other mineral deposits. The temperature remains constant at 20 degrees Celsius year-round.

The park contains petrified tree trunks from the Triassic period, rock formations and Native American petroglyphs.

This five-story residential complex from the 12th century sits in a natural limestone cave 100 feet above ground.

The waterfall drops 100 feet into turquoise pools. Access requires a 10-mile hike or helicopter transportation.

The canyon contains Anasazi dwellings from the 4th century and Navajo people use it for agriculture.

Volcanic formations in the national monument contain vertical rock columns, natural stone arches, and large balanced boulders from ancient eruptions.

This Sonoran Desert area features clusters of tall columnar cacti and diverse desert plants across its protected landscape.

Former copper mining town in the Mule Mountains features Victorian architecture, art galleries, and mining history museums.

The national park protects large stands of Saguaro cacti, which grow up to 50 feet tall in the Sonoran Desert.

The waterfall reaches a height of 185 feet and turns brown during the rainy season due to sediments in the Little Colorado River.

The valley contains remains of 12th-century settlements with petroglyphs and stone structures from the Anasazi culture.

The canyon displays sandstone formations in blue and gray tones, shaped by erosion over millions of years.

The adobe building constructed in 1924 served as a trading post and lodging, now displays exhibitions about the region.

The monument contains 71,000 acres of protected lands, featuring archaeological sites, petroglyphs, and native wildlife near the Agua Fria River.

The wilderness area spans 20,850 acres with sandstone formations, native vegetation, and archaeological sites from the Salado civilization.

The natural travertine arch measures 183 feet high over Pine Creek, with mineral formations and viewing paths throughout the park.

The concrete structures from 1983 remain unfinished on private property, featuring circular buildings and unusual architecture in the desert landscape.

A wooden single-room school built in 1885, now serving as a museum displaying early Arizona education history.

A 323-acre botanical garden containing over 3900 plant species, established in 1924 as a research facility for desert plants.

A 4,000-acre park featuring the 1930s Kannally Ranch and 15 miles of marked hiking trails through grassland and oak woodland.

A 67,000-acre area ranging from 2,700 to 8,666 feet in elevation, containing vegetation zones from desert to pine forest.

These caves extend 210 feet underground and contain no moisture. Visitors can book guided tours through the formations.

The 1916 Douglas Mansion displays exhibits about copper mining and life in an early 20th century mining town.

Granite formations and valleys in Coronado National Forest served as a defensive position for the Chiricahua Apache between 1860 and 1886.

The 19th century Mexican shrine contains candles and a well. Visitors leave notes with wishes.

This concrete dam built in 1911 stands 280 feet tall and controls the Salt River flow into Roosevelt Lake.

The stone bridge from 1831 was purchased for $2.5 million in 1967 and transported stone by stone to Arizona.

The underground tunnel formed by lava flows extends for 1.6 kilometers with a constant temperature of 42°F.

A 700-year-old settlement complex with stone walls, ceramics and tools from the 13th century Salado culture.

A 19th century stone fort with springs and gardens that served as protection and water source for settlers.

A 600-foot deep canyon containing more than 80 prehistoric settlements built into the rock walls.

An extinct volcano from 1085 displaying black lava fields and volcanic deposits.

Red sandstone cliffs reaching heights of 3,000 feet, shaped by erosion over millions of years.