Ryan Heintjes

A 72-year-old man was hiking on the popular South Kaibab Trail when he succumbed to the heat.

And then just four days later, a 67-year-old man and a 68-year-old woman died from what officials believe was heat-related illness on the North Kaibab Trail.

Forecasters that day had issued an extreme heat warning for lower elevations in the canyon where temperatures neared 110 degrees.

Park rangers responded via helicopter to both incidents, but all three hikers were dead when they arrived.

It comes less than a month after an 18-year-old man also died from heat-related causes while hiking in the Inner Canyon.

For NPR News, I'm Ryan Heintjes in Flagstaff.

Artist Chip Thomas led the effort to present lumberjacks who don't resemble the classic Paul Bunyan character, and Northern Arizona University's own mascot served as a natural jumping-off point.

It features photography and images of lumbermen who migrated to Northern Arizona from the South.

Bernadine Lewis grew up in Georgia with tales of black lumberjacks.

The Black Lumberjacks in northern Arizona exhibit is on display through November.

For NPR News, I'm Ryan Heintjes in Flagstaff.