Melissa Block

Southeast Alaska is known as the Panhandle:

It's a long, narrow strip of mainland coastline, plus 1,000 islands and the braided waterways that surround them.

In most places, there are no roads connecting the communities there, so Alaskans depend heavily on ferries: the Alaska Marine Highway System.

If you fly into Haines, Alaska, you'll be on a prop plane so small that your pilot will call the roll.

"Melissa." Yup. "Mary." Yes. "Joseph?" Right here.

Just 2,500 people live in Haines — a small town in southeast Alaska surrounded by water. The scenery is incredible, with snowy mountains and lush green forest beyond. The city center is just a few blocks, with several bars, a few restaurants and a beautiful, award-winning library.

What happens to a town when a key industry collapses?

Sometimes it dies. But sometimes it finds a way to reinvent itself.

Case in point: Ketchikan, Alaska, where the demise of the timber industry has led to a radical transformation.

Many people who used to earn their livelihoods through timber have now turned to jobs in tourism.

It's an identity shift that makes the city far different from what it was in the logging heyday.

"It was this boomtown!" says longtime Ketchikan resident Eric Collins. "It was just a crazy, wild frontier place."

In rural Alaska, providing health care means overcoming a lot of hurdles.

Fickle weather that can leave patients stranded, for one.

Also: complicated geography. Many Alaskan villages have no roads connecting them with hospitals or specialists, so people depend on local clinics and a cadre of devoted primary care doctors.

I followed one young family physician, Dr. Adam McMahan, on his regular weekly visit to the clinic in the village of Klukwan.

Before we headed out on our latest road trip for the Our Land series, we put a call out on social media, asking for ideas of places we should go in Arizona and New Mexico. Shannon Miller's suggestion really caught our attention: "White Sands are the only white gypsum 'sand' dunes in the world. They are actually crystals and it is beautiful."

How could we resist?

There's really no place like it on the planet: White Sands National Monument in southern New Mexico. It's the world's largest gypsum dunefield, miles and miles of stunning white landscape.