• Sonoran Desert at Organ Pipe NM

    Organ Pipe Cactus

    National Monument Arizona

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  • Phone System is Not Working

    Currently the park’s phone system is not functioning. Please email sue_walter@nps.gov with questions and request for information.

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?

Javelinas are not pigs

Javelina look like pigs and act like pigs, but they are not pigs. Pigs evolved over thousands of years on the Eurasian continent. Javelina evolved over thousands of years on the North American continent. So, they may look like each other, but they are not even remotely related. More...