• Historic inscriptions carved in the bluff at El Morro.

    El Morro

    National Monument New Mexico

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  • 2014 Compendium now available

    The 2014 compendium is now available via the link below. It includes new prohibitions on the operation of unmanned aircraft systems (UAS) in national park units. More »

Environmental Factors

A monsoon storm at sunset
NPS Photo: Dave Hays

Environmental factors important to El Morro include air quality, climate change and weather events, and our dark night skies free of "light pollution" from urban centers.

Night Skies

The dark night skies at El Morro are unlike anything you can see in an urban area, but need protection. More->

Snow at El Morro

Weather & Climate

El Morro has highly variable weather, and climate trends influence many factors. More->

Did You Know?

Image of bark on alligator juniper tree

Alligator juniper got its name from its bark which resembles the scaly plates, or chutes, on an alligator's back.