• Sonoran Desert at Organ Pipe NM

    Organ Pipe Cactus

    National Monument Arizona

ORPI Ecological Monitoring Report


The Organ Pipe Cactus National Monument Ecological Monitoring Report (1997-2005) is the most comprehensive report available on the natural resources of Organ Pipe Cactus National Monument.

Below you will find links to the entire document by chapters. Enjoy!!!


Did You Know?

A photo of a barrel cactus with flowers

It's not easy, practical, or legal to get "water" from a barrel cactus within the Monument. Even if you tried to get past the spines, it would be like sucking on a bad-tasting dish sponge. The best thing to do is fill a canteen with good drinking water before leaving home.