More than 100 “citizen scientist” volunteers, using GPS technology and cameras, plan to fan out along the 170-mile-long San Pedro River east of Tucson to map where the river has surface water ...

The San Pedro River is one of the most important bird ... with the Rio Grande 200 miles ... The Nature Conservancy must get permission from about 25 people to map a short section of the river.

The San Pedro is one of the few rivers in the world that flows north, traveling from Mexico across southern Arizona to join the Gila River. It creates a slender forest, a cool shady corridor ...

In 1993 LIFE magazine gave the San Pedro the title of one of “America's Last Great Places.” But the San Pedro River is drying up. Hydrological modeling shows that San Pedro River base flow — the ...

A n alliance of local, regional, and national conservation groups says Arizona is still not doing enough to protect the San Pedro River and that the water rights of the riparian conservation area ...

The San Pedro River is one of the most important bird flyways in North America, but climate change and development threaten its health. HOME. MAIL. NEWS. FINANCE. SPORTS. ENTERTAINMENT. LIFE.

With milder than usual weather expected Wednesday, it will be an exceptional day to go for a bird walk organized by Friends of the San Pedro River. The group hosts bird walks on the second and ...