This week, "CBS Sunday Morning" correspondent Lee Cowan hops on board a historic train bound for the remote Great Basin Desert in northern Nevada. Its passengers aren't there to see sunny ...

HERE IN THE GREAT BASIN IT'S JUST THE OPPOSITE ... SAND DUNES MAY ACTUALLY COVER ABOUT 20% OF THE TOTAL DESERT AREAS THAT WE KNOW ON EARTH. SAND DUNES FORM WHEN YOU GET PERSISTENT AND STRONG ...

But these basins and ranges of the Great Basin Desert are changing dramatically ... as trees decrease the acreage and vitality of sagebrush. But it’s unclear if sagebrush animals will repopulate ...

Last November, the Great Salt Lake, an iconic landmark of the Great Basin Desert, fell to its lowest surface elevation ever recorded. The lake had lost 73% of its water and 60% of its area.

In a harsh alpine desert, the Great Basin bristlecone pines abide amid climate ... tree’s age by extracting a cylindrical sample from its trunk so its rings can be counted.

But these basins and ranges of the Great Basin Desert are changing dramatically ... as trees decrease the acreage and vitality of sagebrush. But it’s unclear if sagebrush animals will repopulate ...