The Nature of Hanging Valleys

A hanging valley is generally defined as a stream or glacial valley that ends abruptly atop the steep wall of a deeper valley or sea cliff. ...

05:45

The Gila River

Covering more than 58,000 square miles, the watershed of the Gila River includes most of Arizona south of the Mogollon Rim.  The river itsel...

06:11

Pioneers of Enlightenment

On this annual American holiday of Thanksgiving, we stop to ponder our good fortune (however meager or extravagant that might be) and to tha...

05:58

Raptors in the Cold Sunshine

Clear skies and cold air enticed me down to the wooded hills and open farmlands south and east of Columbia this morning.  Besides, a steady ...

14:00

Refuge Closed for Killing

On this cold, gray, November morning in central Missouri, I headed down to Eagle Bluffs Conservation Area on the Missouri River floodplain, ...

09:15

The Great Appalachian Valley

The Great Appalachian Valley of North America, a series of topographic valleys separated by low divides, stretches for more than 1200 miles,...

05:55

Two Cities, Two Owls

Great horned owls are the nocturnal avian predators along the Colorado Front Range, feasting on prey as large as skunks, geese and raccoons....

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