The geological and spiritual history of Lake Powell and the Glen Canyon region of Utah and Arizona.
The pueblos of Sierra Madre, Mexico; a donkey-powered pinole grinder made of stone; a leather goods shop in Sahuaripa, Mexico.
Utah's San Rafael Swell and Little Grand Canyon.
Hiking through Canyon X and Kodachrome Basin State Park in Utah; Goblin Valley State Park.
The Northern Jaguar Project tracks jaguar movements throughout Eastern Sonora, Mexico.
Tiger rattlesnakes; rattlesnake dens in the mountains; gila monster.
Kartchner Caverns State Park; Tombstone, Ariz.; Sandhill Cranes of Sulphur Springs Valley; Chiricahua Mountains.
Hot-air balloon ride in Yuma, Ariz.; Arizona Territorial Prison; Sonoran Desert National Monument; Picacho Peak State Park.
Pinaleno Mountains; Organ Pipe Cactus National Monument; Quitobaquito Springs; border fences between the U.S. and Mexico.
Cemetery in Hachita, N.M.; Geronimo Surrenders Monument; Gadsden Hotel; a trip 300-feet underground on Bisbee's Queen Mine Tour.
Cuerva de los Manos: stenciled handprints; Cerro de los Indios; little ranches; modern sheep-herding gauchos.
The Patagonian landscape; El Calafate, the gateway to Los Glaciares National Park; an ice cave; glacial calving.
Tracing the Rio San Miguel through Sonora, Mexico; Father Kino's monument; Cucurpe.
A restoration crew at San Xavier del Bac Mission uses new adobe to repair existing exterior; a commercial brickyard; the Tucson Mountains.
Indigenous peoples of Chihuahua, Mexico; evidence of advanced drainage systems in Paquime, Mexico; a Mennonite farm operation.
The life of the hummingbird, from the Sonoran Desert to Ecuador's mountaintop preserve of Loma Alta; howler monkeys.
Loma Alta, Ecuador, sits below a cloud-forest nature preserve; a hummingbird oasis.
The witches market in Chiclayo offers herbs, hallucinogens and other natural remedies; Ventanillas de Otuzco.
California's Coachella Valley is the hottest inhabited place in the Northern Hemisphere; Palm Canyon; Oasis Date Gardens.
The rugged coast, habitats and traditions of Michoacan, Mexico; banana plantation; Sandbox Tree bears explosive fruit; Mala Mujer shrub.
Annual festival dedicated to pitaya cactus fruit; workers harvest pitayas by lamplight; carpenter makes furniture from columnar cactus wood.
The history and production process of tequila in Jalisco, Mexico.
Exploring the "Arizona Strip" for evidence of early settlements; high desert plants; California Condor Restoration Project.
The market at Puerto Ayora in Santa Cruz; Darwin Research Station's saddleback tortoises; land iguanas; volcanic craters.
Evidence of drought, fire, and civilization; a hike through Organ Pipe Cactus National Monument.
Scientists use tree rings from the White Mountains of California and Sequoia National Park to determine how long the Medieval drought lasted.
South American hats; a museum houses the ancestors of the Chachapoyas; Kuelap's active archeological site.
Adobe pyramids tower over the Peruvian countryside; the Royal Tombs of Sipan house some of the world's richest gold artifacts.
The Rio Maranon in the Amazon boasts a growing abundance of desert vegetation; a gushing spring powers woodworking machinery.
A hunt for fish fossils in the Red Desert of Wyoming; Painted Desert; meteorite collector Robert Haag.
The second half of the deserts along Route 66, from the Petrified Forest to the Joshua trees of the Mojave Desert.
Historic Route 66 allows thousands of Americans to make the journey to California.
Historic Route 66 allows thousands of Americans to make the journey to California.
Scientists mark and track desert tortoises using telemetry; homes benefit from the Arizona-Sonora Desert Museum's Tortoise Adoption Program.
The Gondwana Link project is an ecological restoration process geared toward repairing habitats fractured after World War II.
Alice Springs Desert Park's rivers, sand country and woodland habitats are home to kangaroos, wallabies and bilbies.
Prime bird-watching sites in Australia; helicopter excursion.
Quartzsite, Ariz., is 20 miles east of the Colorado River.
Baja's wine industry.
A pilgrimage by foot and horseback to the church in Sonora's Magdalena de Kino pays homage to San Francisco.
The geology of the Grand Canyon and its desert vegetation.
Sacred salt mines; the intersection of the Little Colorado River with the main river; canyon concert.
Once home to prehistoric Sinagua Indians, Montezuma Castle now houses a colony of bats.
The Rio Sonora in northwest Mexico stretches to the Gulf of California near Kino Bay.
Marine iguanas and the flightless cormorant are some of the creatures in the waters off the Galapagos Islands.
Searching for large cacti on a desert island; flamingos; ghost crabs.
The volcanic origins of Ecuadorean islands.
Plazas pre-Hispanic to modern; how people in the New World used them.
The Red Desert has the largest desert elk herd and largest migratory herd in the continental U.S.
The Red Desert of southwest Wyoming and the Honeycomb Buttes.
El Camino Real; monument to Mexican Gen. Pancho Villa; Chamizal National Memorial.
A journey along El Camino Real; history of the springs of Aguas Calientes; mining town.
El Camino Real trade route from southern Mexico to New Mexico.
The Tohono O'odham live on the second-largest reservation in the U.S.
A trip down the Green River in Utah includes a look at the Dinosaur National Monument and Desolation Canyon.
Peru's Colca Canyon; Andean condors; terraced farming; cactus fruit; harvest; quinoa.
Incan culture; rock art; Nazca lines; underground canals; aqueducts; Incan burial ground.
Sand dunes; the Imperial Sand Dunes Recreation Area; Mexico's Gran Desierto dunes; Utah's Coral Pink Sand Dunes State Park.
Sand dunes in Colorado's Rocky Mountains, the base of the Guadalupe Mountains in west Texas and the White Sands National Monument in New Mexico.
The traditions of the Apatas, an aboriginal group in Sonora, Mexico, including palm-weaving.
Collecting plants; Scottsdale, Ariz.; Boyce Thompson Arboretum; Bach's Cactus Nursery in Tucson, Ariz.; cactus cultivation.
La Paz, Bolivia; Witches' Market; Lake Titicaca; Incan temple.
The Pan-American Highway; Lima, Peru; Ballestas Islands; Toro Muerto.
Wild plants of Baja, Calif., including the boojum tree and the bonsai-like coastal alkali heath shrub.
Cochimi Indian cave drawings; the Sierra del San Francico Mountains; elephant trees; gypsum crystals.
Lava flows and rodent population in Baja California.
Birdwatchers from the Arizona Sonora Desert Museum travel through coastal and forest habitats searching for rare birds.
Astronomy in the Puebloan world, as seen through rock art and architecture throughout the Four Corners.
The Valle de Tehuacan is not only home to the world's greatest variety of cacti, but possibly the birthplace of domestic corn.
Exploring the Spanish influence in the valley of Tehuacan and Oaxaca.
Eighteen species of cacti grow in the Valle de Tehuacan and nearby Oaxaca, all used by native peoples.
The Gila River, which formerly flowed across Arizona, is used up and dries out merely halfway to its former confluence with the Colorado River.
The ecosystems of southwestern Bolivia's desert and volcano regions.
Life in the foothills of the Bolivian Andes, in the village of Santiago de K, includes harvesting endemic potatoes and quinoa.
Exploring the highest desert in the world, located in southwestern Bolivia.
Gray whales travel thousands of miles to reproduce at San Ignacio lagoon of Baja California.
The Basque people of the Great Basin Desert; Winnemucca Basque Parade and Festival; Basque traditions.
A look at the plants and animals that inhabit the Great Basin and the surrounding area.
Nevada; Highway 50; Great Basin Desert; steam train; Ruby National Wildlife Refuge; Canada geese; cranes.
Mojave Desert; lilies; lizards; Joshua Tree National Park; cholla forest.
Mojave Desert; Mojave National Preserve; creosote flats; Mitchell Caverns; volcanic fields.
Travels to such aptly named places as the Devil's Golf Course, Furnace Creek and Badwater.
Sasabe, Ariz.; mission; spring wildflower display; petroglyphs.
Sonoran Desert; Organ Pipe Cactus National Monument; dry cave; javelina; medicinal plants.
Chihuahau Desert; biking, hiking and canoeing through Big Bend National Park; prehistoric fossils; cave paintings; canyons.
Host John David Yetman visits the Big Bend National Park to explore the Chihuahuan Desert near the Rio Grand river.
The people of Argentina; natural resources; Buenos Aires; Eva Peron's tomb; wool harvest; cactus wood.
Salta, Argentina; market; fog forest; painted desert.
Argentina; Buenos Aires; the Andes; farmers market; rain forest; archaeological site predates the Incas.
The chances given the sandhill crane, desert fish and antelope to survive the changes man has made to the once wide-open West.
The survival tricks used by many desert animals, from kangaroo rats to desert fish and self-shading agave cacti.
Traveling through the desert without air conditioning in a Model T Ford, on horseback and on foot.
The medical uses for the prickly pear, which can be found growing from Mexico to Canada.
The 50th anniversary of the Arizona-Sonoma Desert Museum, which serves as a zoo, botanical garden and education center.
The construction of two different desert homes with the same goal -- to be energy efficient in the middle of the desert.
Ethno-botanists attempt to learn how the sagueso cactus came to be found outside its natural Mexican habitat.
Mexican town prospers after Juan Quezada shares his pot-making skills.
The scheduled demolition of the Glen Canyon Dam, a structure originally designed to generate power and protect the environment.
The life of the Anasazi along the San Juan River 2,000 years ago.
Working as a rancher in San Rafael Valley on the Arizona-Mexico border.
The lives of the people living along the Magdalena Bay along the Pacific coast of the Baja.
A geological history of the northern Sonora Desert, including a major earthquake that struck in the late 1800s.
How human intervention created the Salton Sea, a wildlife refuge for birds.
Efforts to preserve the unique mineralogical formations of Kartchner Caverns.
The survival techniques of roadrunners and coyotes.
The importance of the mesquite tree to both the mesquite bug and people living in the Sonoran Desert.
The struggle the Guarijio Indians faced in regaining their freedom from wealthy land owners.
Rafting; Colorado River; Grand Canyon; engineer Robert Brewster Stanton.
Clips from the past 10 years that delve into the history, people, geology and geography of the Sonoran Desert.
The lives of bees, from honey production to the rigid caste system.
Deadly honeybees have migrated north to the Southwestern United States.
Forest-fire fighter; outdoors journalist; artist; museum curator.
Jobs that entail working outdoors, including eco-wrangler, river guide, hot-air balloonist and archaeologist.
Fluoroscopy reveals the insides of desert insects, reptiles, birds, mammals.
Archaeologists examine the ancient Chaco culture of New Mexico.
What engineers are learning from spiders; spiders that aren't as bad as their reputations.
The marine nature preserve on the shores of the Sea of Cortez that incorporates two different ecosystems.
The two-year expedition of Norwegian scientist Carl Lumholtz through the Great Desert of Sonoro, Mexico.
Scientific, medical and culinary uses for chiles, from analgesic rubs to keeping away unwanted animals.
Reintroduction of antelopes, beavers and ferrets to natural environments.
The origin and impact of paths, ancient trails and roadways.
Ways of viewing nature from a new perspective.
Collections of the weirdest rare plants in the world.
The natural history of rattlesnakes in the United States.
Gems and minerals.
The varying species of butterflies, moths and dragonflies in North America.
A desert museum; creating exhibits; natural habitats.
Biologist protects birds.
The volcanic desert islands in the Gulf of California.
The spiritual effect desert geological land formations have on people.
Exploring the Pinacate, known as the driest and one of the last explored regions of North America.
The relationship between humans and rattlesnakes.
Seven ecological zones found within the Sonoran Desert.
Four research subjects and how they adapt to their environments.
The agave is a source of tequila, food, clothing, rope.
The impact exotic species have on their non-native environments.
The various ecosystems found within the Santa Catalina Mountains.
Four insects: a grasshopper, fly, beetle and moth.
Nontraditional building methods; building in an arid environment.
Bird migrations from Colorado's Rocky Mountains to Guadalajara, Mexico.
A day-in-the-life portrait of the Arizona-Sonora Desert Museum.
Ancient agricultural techniques still in use today along the Rio Yaqui in Sonora, Mexico.
Dispelling myths associated with the desert, including getting water from a cactus.
The disappearance of hummingbirds, bees and other pollinators and how this affects commercial agriculture operations.
Islands of the Baja; sea lions; elephant seals; gray whales; eco-tourism.
Islands of the Baja; sea lions; elephant seals; gray whales; eco-tourism.
The natural cycle of life; life/death in the Sonoran desert.
Fort Huachuca, U.S. Army post; civilian researchers.
Southwestern Research Station; hummingbirds; lizard push-ups; tarantulas.
The important relationship of plants and animals.
The reality of water holes in the Sonoran desert and the flora and fauna that surrounds them.
Climate changes; learning about past climates; tree-ring analysis; fossil dung; dinosaur bones.
Taking advantage of the coolness of night, desert animals roam, gather and hunt.
Coping with the extremes found in a desert landscape, including comfortable buildings created by adapting animal survival strategies.
Glen Canyon Environmental Studies; measuring changes in river environments; the future of rivers.
Recent changes along the Colorado River and how even this river environment has elements of the desert.
The role of fires in the desert; future fire-management techniques.
Canoeing on the Verde River, whether for work or pleasure.
Plants of the Sonora.
Animals of the Sonora.
Procreation of desert animals.
How animals are cared for at the Arizona-Sonora Desert Museum.
Researching desert life.
A group of children surveys a riparian area.
The inquisitiveness of children.
The impact of the Verde River on humans.
The spiritual relationship Mayo Indians enjoy with nature.
The role of bats in the desert ecosystem.
The habits of desert animals, including mountain lions, lizards, ants and the desert tortoise; a look at desert research, including searching for chuckwallas.
The Centro Ecologico de Sonora in Hermosillo, Mexico -- an organization working to preserve sensitive biological sites.
The Nature Conservancy's Tribal Relations Project, focusing on the Tohono O'Odham's management and protection of endangered native plants.
A traditional Tohono O'Odham garden; plants that will attract birds.
A Ramsey Canyon research project for banding hummingbirds; how birds are affected by a desert's seasons.
Plants, animals and insects which use poison and other toxic substances for protection, survival and as an offensive weapon.
A look at desert research, including searching for chuckwallas and following the desert tortoise using radio tracking.
The habits of desert animals, including mountain lions, lizards, ants and the desert tortoise.
Butterflies, hummingbirds and other tiny denizens of the Sonoran Desert.
Recreational uses of the desert at Topock Gorge, Rio Yaqui and Muleshoe Ranch, including mountain biking and rock climbing.
An examination of plants, reptiles and insects that make their homes among the seemingly barren desert sand dunes.
The life cycle of the saguaro cactus and its relationship with insects, animals and other plants.
Eco-tourism, coastal sea birds, whale watching, Catholic missions and the prehistoric indigenous people of the Baja Peninsula.
Examines the geography, vegetation and animals found in California's Baja Peninsula.
Wildlife camouflaged by blowing grasses; constructing a grasslands habitat at the Arizona-Sonora Desert Museum.
Desert insects and arthropods, including their means of locomotion, defense and role in the Sonoran habitat.
The new science of "restoration ecology," which seeks to rehabilitate desert riparian areas.
The plant and animal life found in Arizona's Chiricahua Mountains.
The benefits that come from studying the desert; the fate of an endangered lily.
The wildlife that struggle for survival on the desert islands of the Gulf of California.
How the wildlife that live in the Sea of Cortez make use of the sea's resources.
The Colorado River sustains fish, plants and wildlife.
Wildlife found in the Sonoran Desert during spring.
Humans affect the desert environment.
North America's hottest and driest region contains lava, giant craters and sand dunes.
Traces the desert's water source from the upper reaches of the watershed to the Sonoran Desert valley.
The white rock spires of the Sierra de Alamos mountains; geological formations that produced the Sonoran.
The variety of plants and animals that live in the Sonoran desert.
Overlooked desert foods: prickly pear, saguaro cactus, palo verde and jojoba.
Hunting and scavenging by wolves, mountain lions, vultures, coyotes and kestrels.
How indigenous desert dwellers have been affected by invasive foreigners.
The lifecycle of desert caves, spelunking, mines and underground life.
How the harsh environment has forced desert inhabitants to adapt.
Plant propagation and lizard locomotion are included in a look at mobility.
Sonoran monsoons; creatures of the night, including bats, owls and scorpions.
Endangered species living in the Sonoran Desert, including wolves, chuckwallas and pupfish, are profiled.
Desert creatures aid research scientists.
Canada; "mountain islands."
Identifying dangerous and poisonous desert plants and animals.
Wildflowers, spadefoot toads, cacti, ocotillo and other desert wildlife.
This 13-part series examining the Sonoran Desert opens with the desert's colors.