• Sonoran Desert at Organ Pipe NM

    Organ Pipe Cactus

    National Monument Arizona

ORPI Ecological Monitoring Report

ORPI EMR

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?

Endangered Sonoran Pronghorn

The Sonoran Pronghorn is a critically endangered species that calls Organ Pipe Cactus National Monument home for part of the year. With less than 60 animals left in the United States, our wilderness provides important habitat for this beautiful animal's survival. More...