• The Great House at Casa Grande Ruins stands out for miles

    Casa Grande Ruins

    National Monument Arizona

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  • Visitor Center Rennovations

    Park is having major electrical and heating/cooling system work done. The Visitor Center will be closed until late June but restrooms, movie auditorium, historic ruins area, and picnic area will remain open (no fees or pass sales during rennovation).

Mammals of the Sonoran Desert

A Kit fox resting in a wall of the Casa Grande.

A Kit fox resting in a wall of the Casa Grande.

NPS Photo

The Sonoran Desert is home to a wide variety of animals, birds and other creatures. Mammals include large animals like the javelina, coyote, Mexican Wolf, bighorn sheep, and bobcat. Smaller animals like the fox, skunk, cottontail, and jackrabbit also live here.

Another mammal that lives in the desert is the bat. These animals pollinate many plants and eat lots of bugs. There are two bats unique to the Sonoran desert: the long-tongued bat and the long-nosed bat .

 
A round-tailed ground squirrel at Casa Grande Ruins.

A Round-tailed ground squirrel at Casa Grande Ruins.

Jim Creager

Even rodents like the packrat, round-tailed ground squirrel, and mice make the Sonoran Desert their home. Many of these animals are nocturnal. By hunting and foraging for food at night, they keep cooler and are less likely to become dehydrated.
 

Did You Know?

The 'Big House' at Casa Grande Ruins circa 1900.

An estimated six million pounds of caliche were used in the construction of the Casa Grande. Caliche is a naturally occurring soil consisting of clay, sand and calcium carbonate found in the deserts of the southwest.