Wilderness Crowds: Instagram's Fault?

Are gorgeous social media photos and hashtags behind record crowds in our natural areas? Some think so.
Sunset crowds at the Grand Canyon

Sunset crowds at the Grand Canyon

More and more people have crowded wilderness areas from Yosemite National Park to Colorado's Conundrum Hot Springs in recent years. Why? Travel photographer Brent Knepper argues it's because Instagram photos are fueling visitation and revealing formerly obscure locations in this NPR interview.