Classified for credit

Nature Conservancy preserve in the Huachuca Mountains — exceptional hummingbird diversity and riparian ecology make it a strong field site for ornithology and conservation biology.

AZA-accredited zoo with strong conservation programs covering animal biology, Sonoran Desert species, and global wildlife preservation.

In-situ Hohokam archaeological site with platform mound and museum — covers pre-Columbian Southwest cultures, irrigation agriculture, and archaeology methods.

National park protecting the Sonoran Desert's giant saguaro cactus ecosystem — covers desert ecology, plant adaptations, and Sonoran geography.

Sedona's red rock canyon park with trails through sandstone formations — geology, erosion, and high-desert ecology of Arizona's Colorado Plateau.

Wolf and wolf-dog sanctuary in central Arizona — wolf behavior, ecology, and wildlife conservation education with guided tours.

Pioneer Arizona heritage campus with historic buildings and archives — covers territorial-era Arizona history, women's history, and Southwest settlement.

Arizona state park featuring a natural sandstone water slide on Oak Creek — supports geology, erosion, riparian ecology, and sedimentary rock study.

Rotunda museum at Lowell Observatory where Pluto was discovered — covers planetary science, telescope history, and the history of astronomy.

Public observatory at Kitt Peak area offering nighttime and daytime viewing programs — covers telescope mechanics, stellar astronomy, and astrophysics basics.

Guided dark-sky stargazing program in Sedona — telescope optics, constellation identification, and observational astronomy in a low-light-pollution environment.

Lowell Observatory's Steele Visitor Center in Flagstaff — covers planetary science, telescope optics, and the history of astronomy including Pluto's discovery.

National Monument preserving a 900-year-old cinder cone volcano near Flagstaff — covers volcanology, lava flow geology, and Ancestral Pueblo history.

Frank Lloyd Wright's desert campus and school — covers American architectural history, organic design principles, and 20th-century arts.

Kitt Peak National Observatory solar telescope facility on Tohono O'odham Nation land — covers solar astronomy, optics, and spectroscopy through guided telescope access.

Sonoran Desert botanical garden with labeled native plant collections — covers desert plant adaptations, xeriscape ecology, and regional natural history.

Salado cliff dwellings within Tonto National Monument — covers pre-Columbian Southwestern Indigenous architecture, archaeology, and 13th-century desert adaptation.

Vast national forest spanning nearly 3 million acres in Arizona — desert and riparian ecology, geology, and wilderness geography.

Arizona state park protecting the world's largest natural travertine bridge — covers geology, carbonate mineral deposition, and riparian canyon ecology.

NPS-managed Salado cliff dwelling accessible by boat — covers Ancestral Pueblo architecture, pre-Columbian Arizona archaeology, and desert adaptation strategies.

Ancestral Puebloan ruin inside Grand Canyon National Park with a small NPS museum — covers Southwestern archaeology and pre-Columbian indigenous culture.

University-operated mountain observatory on Mt. Lemmon — covers telescope optics, astrophysics, and observational astronomy.

UA lab where some of the world's largest telescope mirrors are cast and polished — covers optics, materials science, and astronomical engineering.

USNO Flagstaff Station telescope facility — astrometry, stellar parallax measurement, and operational astronomical observatory science.