A planned expansion of the park’s east entrance parking lot has created a unique opportunity to study these protected desert giants.

Climate change, drought, and fires — all caused or worsened by human activity — are rewriting the future of ancient Sonoran ...

Explore the rugged terrain and rare plants at one of Arizona's newest and barely visited national monuments, a serene cactus ...

The saguaro cactus is a distinctive icon of the American Southwest, found only in the Sonoran Desert. This towering plant, which can grow up to 60 feet tall and live for more than 200 years, is the ...