Tag Archives: Sonora

Colorado River Water Rights

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Under a longstanding treaty, the Colorado River irrigates 3 million acres of farmland and supplies water to 30 million people in the United States and Mexico. Between population growth and a decade long drought, the Colorado is under such stress that Western states – desperate to maintain water supplies – want to purify agricultural runoff currently diverted into Mexico. But as The World’s Lorne Matalon reports, Mexico covets that water, because it has given birth to a productive wetland.

Columns of moist air hover above still water in the Cienega de Santa Clara, mirroring the desert sky. The wetland is an oasis in dry northern Mexico, a haven for birds and fish, some endangered.

(Lorne Matalon)

“The Cienega is the most important wetland in the Colorado River delta.”

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Rio Santa Cruz: Saving A River Along The US-Mexico Border

Story originally published at

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Flying over the village of San Lazaro, Sonora, Mexico

Just south of the US border, the Santa Cruz River is a dust bowl, a scarred ditch tapped dry by the booming twin cities of Nogales, Mexico and Nogales, Arizona. Not long ago, people waded in and held baptisms in the river. Today it looks like fire has destroyed the riverbed and the trees beside it. But it’s a very different story a couple of hours farther into Mexico. Lorne Matalon has the story.

San Lazaro, Mexico – population 600 – it’s on the floor of a remote valley crisscrossed by warrens of paths carved into the boundless Sonoran desert. It’s where the Santa Cruz starts wending its way north toward the U-S. And it’s where 20-year-old Arturo Alvarez leads a group of young people working on a restoration team. ‘We’re watching bird migration patterns,’ Alvarez says. The group is known as Los Halcones– the Hawks-and it’s also monitoring the river’s temperature, and the health of the vegetation lining its banks.

(Lorne Matalon)

Less than a decade ago, little took root here. The protective underbrush and cottonwood and mesquite saplings had been trampled by cattle and horses. But Los Halcones have fenced off two miles of the river and saplings are now abundant.

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