Mexico: Butterflies on the Sierra Madre Sara Evans is enchanted by the millions of butterflies that migrate to the Sierra Madre mountains for the winter. By Sara Evans 16 August 2010 • 1:37pm ...

Trump border wall could pose threat to Sierra Madre ecosystem 03:36. The Sierra Madre mountains rise from the Sonoran Desert where Arizona and New Mexico meet Mexico.

DURING the past summer, in travelling across the Sierra Madre Mountains from Parral in the southern part of the State of Chihuahua, Mexico, to the mining town of Guadalupe y Calvo, on the Pacific ...

Lightning strikes the desert in Florence, Arizona, during the North American monsoon in September 2021 The North American monsoon is caused by the flow of air over mountains, according to computer ...

The Omiltemi cottontail rabbit, a species lost to science since 1904, has been rediscovered in Mexico's Sierra Madre del Sur mountains.. The elusive rabbit was spotted by a team led by José ...

In late 1975, Kenneth Brugger, a naturalist living in Mexico and a friend of Urquhart’s, had discovered giant colonies of monarchs high up in Mexico’s Sierra Madre mountain range.