The Grand Canyon: Unraveling the Geology Behind One of the World

Discover the Grand Canyon’s incredible geology, from ancient rock layers to the mighty Colorado River that carved its depths. Explore its cultural significance, biodiversity, and why this natural wonder remains one of Earth’s greatest geologic archives.

The Santa Catalina Mountains: Fault-Block Giants Rising Above th

Discover the Santa Catalina Mountains near Tucson—fault-block giants rising from the Sonoran Desert. Explore their ancient geology, indigenous history, diverse ecosystems, and modern recreation on Mount Lemmon and beyond.

The San Francisco Peaks: Arizona’s Highest Mountains and Volcani

Discover the San Francisco Peaks in northern Arizona—towering volcanic mountains rich in sacred history, alpine ecosystems, and outdoor adventures.

Antelope Canyon: How Flash Floods Sculpted Arizona’s Most Iconic

Discover Antelope Canyon in Arizona—a breathtaking slot canyon carved by flash floods and revered by the Navajo Nation. Explore its twisting sandstone walls, vibrant colors, and sacred history.

The Kaibab Plateau: Arizona’s Forested Table of Limestone and Fo

Discover Arizona’s Kaibab Plateau—a forested limestone mesa rich in fossils, wildlife, and Native history, perched above the Grand Canyon’s North Rim.

Coconino Sandstone: Tracing Arizona’s Ancient Desert Dunes in Ro

Discover the Coconino Sandstone, a striking Grand Canyon rock layer that reveals ancient desert dunes, fossilized footprints, and the geological story of Arizona’s Permian past.

Monument Valley: Towering Sandstone Formations and Sacred Navajo

Discover Monument Valley, where towering sandstone buttes meet sacred Navajo traditions. Explore its geologic history, cultural significance, and enduring beauty on the Arizona-Utah border.

The Verde Hot Springs: Thermal Waters and Ruins Deep in the Wild

Discover Verde Hot Springs in central Arizona—remote geothermal pools surrounded by historic ruins, Indigenous heritage, and rugged canyon landscapes along the Verde River.

Lava River Cave: Exploring Arizona’s Subterranean Lava Tube

Explore Arizona’s Lava River Cave, a mile-long lava tube near Flagstaff where ancient molten flows formed a rare underground volcanic wonder.

Meteor Crater: Arizona’s Asteroid Impact and the Science of Spac

Discover Meteor Crater in Arizona—Earth’s best-preserved asteroid impact site. Explore its 50,000-year-old cosmic collision, scientific significance, and role in astronaut training and planetary research.

Marble Canyon: The Gateway Gorge to the Grand Canyon – A Journey

Discover Marble Canyon, the dramatic gateway to the Grand Canyon. Explore its ancient geology, Indigenous heritage, Lees Ferry history, and breathtaking views carved by the Colorado River.

Organ Pipe Cactus Biosphere Reserve: A Rare UNESCO Desert Gem

Discover Arizona’s Organ Pipe Cactus Biosphere Reserve, a rare UNESCO‑designated desert sanctuary protecting diverse cacti, wildlife, and cultural heritage in the heart of the Sonoran Desert.

Petrified Forest National Park: Fossilized Giants of Arizona’s A

Explore Petrified Forest National Park in northeastern Arizona, where ancient trees turned to stone reveal a vivid record of prehistoric life, Triassic fossils, and the vibrant Painted Desert landscape.

The Little Colorado River Gorge: Arizona’s Lesser-Known Geologic

Discover the Little Colorado River Gorge in northeastern Arizona—a breathtaking yet lesser-known canyon shaped by millions of years of erosion and rich in Indigenous cultural significance. Explore its geology, sacred sites, and untouched beauty near the Grand Canyon.

Red Rock Formations of Sedona: Geological History Beyond the Spi

Discover the red rock formations of Sedona, Arizona—iconic cliffs shaped by 275 million years of geology and layered with Native history, spiritual myths, and breathtaking natural beauty.

Kartchner Caverns: Living Caves Preserving Arizona’s Subterranea

Discover Kartchner Caverns State Park in southeastern Arizona—a pristine living cave system with active formations, rich geology, and guided tours that reveal millions of years of natural history and conservation efforts.

The Gila Mountains: A Rugged Range Shaped by Time and Tectonics

Discover Arizona’s Gila Mountains near Yuma—a rugged range shaped by tectonics, volcanic forces, and deep cultural history. Explore its geology, Indigenous heritage, wildlife, and enduring desert beauty.

The Black Hills of Arizona: Ancient Volcanic Uplift Near Camp Ve

Discover Arizona’s Black Hills near Camp Verde—a volcanic uplift rich in geologic history, mining ruins, and diverse wildlife. Explore rugged trails, scenic drives, and hidden stories shaped over millions of years.

Horseshoe Bend: The Iconic Colorado River Curve Carved Over Mill

Discover Horseshoe Bend in Page, Arizona — a world-famous 270-degree curve of the Colorado River carved through Navajo Sandstone over millions of years. Explore its geology, Navajo cultural significance, and rise as an iconic travel destination.

The White Mountains: Volcanic Origins and Alpine Relief in Easte

Explore Arizona’s White Mountains—volcanic peaks, Apache heritage, lush forests, and year-round recreation in this alpine escape near the New Mexico border.

The Superstition Mountains: Myths, Legends, and Geologic Power

Explore Arizona’s Superstition Mountains—where volcanic origins meet enduring legends like the Lost Dutchman’s Gold Mine. Discover their rugged geology, rich biodiversity, and timeless cultural myths.

Sunset Crater Volcano: Arizona’s Volcanic Past and the Landscape

Explore Sunset Crater Volcano in Arizona, a striking cinder cone formed by a 900-year-old eruption. Discover its fiery history, volcanic landscapes, ecological rebirth, and cultural significance to Indigenous peoples.

The Needle Mountains: Sharp Spires and Hidden Valleys of the Wes

Discover Arizona’s Needle Mountains—jagged volcanic spires, sacred Native history, and resilient desert wildlife near the Colorado River.

The Colorado Plateau: Arizona’s Corner of One of Earth’s Oldest

Explore Arizona’s share of the Colorado Plateau—home to the Grand Canyon, Monument Valley, and ancient rock layers spanning two billion years. Discover its unique geology, sacred landscapes, and rich biodiversity.

The Mogollon Rim: A Massive Geologic Divide with Panoramic Fores

Discover Arizona’s Mogollon Rim, a towering geologic escarpment that divides desert lowlands and alpine forests. Explore its panoramic views, diverse wildlife, ancient rock layers, and rich cultural history—a destination for hiking, camping, and breathtaking scenery.

The Baboquivari Peak: Sacred Monolith of the Tohono O'odham – A

Discover Baboquivari Peak, a sacred monolith of the Tohono O’odham in southern Arizona. Explore its geological wonders, spiritual significance, rich history, and diverse desert ecosystems in this timeless journey through culture and nature.

Arizona’s Natural Arches: Wind and Water Sculpted Stone Bridges

Discover Arizona’s breathtaking natural arches—stone bridges shaped by wind and water over millions of years. Explore famous sites like Rainbow Bridge, Tonto Natural Bridge, and hidden canyon formations rich in geological beauty and cultural significance.

The Chiricahua Apache Stronghold: Granite Defenses of a Warrior

Discover the Chiricahua Apache Stronghold in Arizona’s Dragoon Mountains—a rugged granite refuge rich in history, biodiversity, and Indigenous heritage. Explore its dramatic landscapes, cultural legacy, and role in Apache resistance.

Fossil Creek: A Rare, Spring-Fed Oasis in the High Desert

Discover Fossil Creek, Arizona’s rare spring-fed oasis with travertine pools, lush canyons, rich wildlife, and a remarkable restoration story.