Arizona's elopement appeal comes down to light and geology. The Sonoran Desert receives over 300 days of sun per year, and desert light at golden hour has a color quality unlike anything in a wetter climate — deep amber, long shadows, sandstone walls that seem to glow from inside. The red-rock country around Sedona in particular has become one of the most photographed elopement landscapes in the world, and the Cathedral Rock and Bell Rock formations are genuinely extraordinary backdrops that require nothing added to be visually compelling.
Beyond Sedona, Arizona offers the saguaro forest of the Tucson basin, the volcanic landscape around Flagstaff (including the San Francisco Peaks, which hold snow through spring), the canyon rim country of the Colorado Plateau in the north, and the boulder-strewn landscape of the Superstition Wilderness east of Phoenix. Each region photographs distinctly. Couples who've done their research often come to Arizona with a specific landscape in mind; those who haven't usually end up choosing Sedona.
One practical note: Arizona has minimal waiting period for marriage licenses (typically 24 hours or less) and no residency requirement, which makes last-minute elopement planning logistically straightforward.